The answer to life, the universe, and everything else is…. 42
It is a reference to Douglas Adam's - The Hitchhiker's Guide to the Galaxy
>What does 42 mean in Hitchhiker Guide to the Galaxy?
>When Douglas Adams wrote The Hitchhiker's Guide to the Galaxy, he added a central joke which has become more famous over the years than the novel itself: "The answer to the ultimate question of life, the universe and everything is 42."
Always remember: Don't Panic.