18685040874604 has 24 divisors (see below), whose sum is σ = 35220701789168. Its totient is φ = 8622252048960.

The previous prime is 18685040874583. The next prime is 18685040874607. The reversal of 18685040874604 is 40647804058681.

It is not an unprimeable number, because it can be changed into a prime (18685040874607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33322827 + ... + 33878914.

Almost surely, 2^{18685040874604} is an apocalyptic number.

It is an amenable number.

18685040874604 is a deficient number, since it is larger than the sum of its proper divisors (16535660914564).

18685040874604 is a wasteful number, since it uses less digits than its factorization.

18685040874604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67207105 (or 67207103 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 61.

The spelling of 18685040874604 in words is "eighteen trillion, six hundred eighty-five billion, forty million, eight hundred seventy-four thousand, six hundred four".