156789268972 has 24 divisors (see below), whose sum is σ = 330082672640. Its totient is φ = 63658800720.

The previous prime is 156789268963. The next prime is 156789269017. The reversal of 156789268972 is 279862987651.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147357804 + ... + 147358867.

Almost surely, 2^156789268972 is an apocalyptic number.

It is an amenable number.

156789268972 is an abundant number, since it is smaller than the sum of its proper divisors (173293403668).

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

156789268972 is a wasteful number, since it uses less digits than its factorization.

156789268972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294716701 (or 294716699 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 70.

The spelling of 156789268972 in words is "one hundred fifty-six billion, seven hundred eighty-nine million, two hundred sixty-eight thousand, nine hundred seventy-two".