TypeError: 'int' object is not callable error when pygame quit button is pressed.

     for event in pygame.event.get():
        if event.type == pygame.QUIT:
            crashed = True
        elif event.type == pygame.MOUSEBUTTONUP:
            mx, my = pygame.mouse.get_pos()
            if mx > 180 and mx < 340 and my > 200 and my < 330:
                gamepad.fill(WHITE)
                hangman.StartScreen()
                hangman.PreHangMan()
                hangman.main()
            if mx > 500 and mx < 660 and my > 200 and my < 330:
                snakegame.home(0.0)
            if mx > 180 and mx < 340 and my > 440 and my < 580:
                Find the same picture.main()
            if mx > 550 and mx < 660 and my > 440 and my < 580:
                sudoku44.start()
            if mx > 750 and mx < 770 and my > 25 and my < 50:
                pygame.QUIT()
                print("Thank you for enjoying the game so far.")
        elif event.type == pygame.MOUSEBUTTONDOWN:
            mx1, my1 = pygame.mouse.get_pos()
            if mx1 > 750 and mx1 > 770 and my1 > 25 and my1 < 50:
                block6 = pygame.image.load(Exit_2).convert.alpha()

Traceback (most recent call last):
 File "minigame.py", line 181, in initGame() File "minigame.py",
                     line 179, in initGame runGame()
 File "minigame.py", line 117, in runGame pygame.QUIT()
 TypeError: 'int' object is not callable