23972822156 has 12 divisors (see below), whose sum is σ = 42928077192. Its totient is φ = 11707657248.

The previous prime is 23972822143. The next prime is 23972822171. The reversal of 23972822156 is 65122827932.

It is a self number, because there is not a number n which added to its sum of digits gives 23972822156.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69688265 + ... + 69688608.

It is an arithmetic number, because the mean of its divisors is an integer number (3577339766).

Almost surely, 2^23972822156 is an apocalyptic number.

It is an amenable number.

23972822156 is a deficient number, since it is larger than the sum of its proper divisors (18955255036).

23972822156 is a wasteful number, since it uses less digits than its factorization.

23972822156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139376920 (or 139376918 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The spelling of 23972822156 in words is "twenty-three billion, nine hundred seventy-two million, eight hundred twenty-two thousand, one hundred fifty-six".