Very Big Numbers

There is no such thing as the biggest number because no matter how big a number is, you can always add one more. But humans have invented some absolutely ridiculous ones. For example, this one right here called a Google is one followed by 100 zeros. That is a bigger number than the total number of particles in the observable universe. But to mathematicians studying very big numbers, a Google is tiny because its big brother, a Google Plex, is a one followed by a Google zeros. A number so big that we can't even write it out. And if we wanted to try, we would need every single human being that has ever lived working together for 72 quinn vigilion years. That is the same amount of time that scientists estimate will pass between the big bang and the death of the universe. And even that number is microscopic when we compare it to Graham's number. A number that is so unimaginably large that if you were able to actually picture it inside of your head, your brain would collapse into a black hole.