636120272922 has 16 divisors (see below), whose sum is σ = 1272386901600. Its totient is φ = 212015698352.

The previous prime is 636120272891. The next prime is 636120272923. The reversal of 636120272922 is 229272021636.

It is not an unprimeable number, because it can be changed into a prime (636120272923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6041613 + ... + 6146000.

It is an arithmetic number, because the mean of its divisors is an integer number (79524181350).

Almost surely, 2^636120272922 is an apocalyptic number.

636120272922 is an abundant number, since it is smaller than the sum of its proper divisors (636266628678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

636120272922 is a wasteful number, since it uses less digits than its factorization.

636120272922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12196317.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 636120272922 in words is "six hundred thirty-six billion, one hundred twenty million, two hundred seventy-two thousand, nine hundred twenty-two".