18657002864 has 20 divisors (see below), whose sum is σ = 36171059904. Its totient is φ = 9322535808.

The previous prime is 18657002863. The next prime is 18657002867. The reversal of 18657002864 is 46820075681.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18657002863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346997 + ... + 397140.

Almost surely, 2^18657002864 is an apocalyptic number.

It is an amenable number.

18657002864 is a deficient number, since it is larger than the sum of its proper divisors (17514057040).

18657002864 is a wasteful number, since it uses less digits than its factorization.

18657002864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745712 (or 745706 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 18657002864 in words is "eighteen billion, six hundred fifty-seven million, two thousand, eight hundred sixty-four".