18358537872688 has 80 divisors (see below), whose sum is σ = 38392410117376. Its totient is φ = 8454019610880.

The previous prime is 18358537872679. The next prime is 18358537872713. The reversal of 18358537872688 is 88627873585381.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575649223 + ... + 575681113.

Almost surely, 2^{18358537872688} is an apocalyptic number.

It is an amenable number.

18358537872688 is an abundant number, since it is smaller than the sum of its proper divisors (20033872244688).

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

18358537872688 is a wasteful number, since it uses less digits than its factorization.

18358537872688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38082 (or 38076 counting only the distinct ones).

The product of its digits is 4335206400, while the sum is 79.

The spelling of 18358537872688 in words is "eighteen trillion, three hundred fifty-eight billion, five hundred thirty-seven million, eight hundred seventy-two thousand, six hundred eighty-eight".