What is the definition of 24681012?

The word '24681012' is like a secret code, but instead of being a fun cipher, it's a mathematical jigsaw puzzle that no one's brain is wired to solve. It's essentially a series of digits that form a random, yet somehow intriguing number. Imagine it as the ultimate mystery novel title - 'Mystery Number 24681012', but without any plot twist or character development.

---

Now, here's an unsettling example sentence using it: "The ghostly figure of the '24681012' roamed the abandoned asylum, whispering eerie prophecies about the patients who'd never left its hallowed halls."