18272662832 has 20 divisors (see below), whose sum is σ = 35428963056. Its totient is φ = 9129704640.

The previous prime is 18272662813. The next prime is 18272662871. The reversal of 18272662832 is 23826627281.

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, 391388 + ... + 435579.

Almost surely, 2^18272662832 is an apocalyptic number.

It is an amenable number.

18272662832 is a deficient number, since it is larger than the sum of its proper divisors (17156300224).

18272662832 is a wasteful number, since it uses less digits than its factorization.

18272662832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828356 (or 828350 counting only the distinct ones).

The product of its digits is 774144, while the sum is 47.

The spelling of 18272662832 in words is "eighteen billion, two hundred seventy-two million, six hundred sixty-two thousand, eight hundred thirty-two".