22979772956 has 24 divisors (see below), whose sum is σ = 47544359520. Its totient is φ = 9508871232.

The previous prime is 22979772911. The next prime is 22979772961. The reversal of 22979772956 is 65927797922.

It is a junction number, because it is equal to n+sod(n) for n = 22979772892 and 22979772901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14149295 + ... + 14150918.

It is an arithmetic number, because the mean of its divisors is an integer number (1981014980).

Almost surely, 2^22979772956 is an apocalyptic number.

It is an amenable number.

22979772956 is an abundant number, since it is smaller than the sum of its proper divisors (24564586564).

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

22979772956 is a wasteful number, since it uses less digits than its factorization.

22979772956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28300253 (or 28300251 counting only the distinct ones).

The product of its digits is 60011280, while the sum is 65.

The spelling of 22979772956 in words is "twenty-two billion, nine hundred seventy-nine million, seven hundred seventy-two thousand, nine hundred fifty-six".