18732320956 has 12 divisors (see below), whose sum is σ = 32832548392. Its totient is φ = 9351592848.

The previous prime is 18732320947. The next prime is 18732320963. The reversal of 18732320956 is 65902323781.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 3639015 + ... + 3644158.

Almost surely, 2^18732320956 is an apocalyptic number.

It is an amenable number.

18732320956 is a deficient number, since it is larger than the sum of its proper divisors (14100227436).

18732320956 is a wasteful number, since it uses less digits than its factorization.

18732320956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7283820 (or 7283818 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 18732320956 in words is "eighteen billion, seven hundred thirty-two million, three hundred twenty thousand, nine hundred fifty-six".