18004214928 has 40 divisors (see below), whose sum is σ = 53155302208. Its totient is φ = 5144061312.

The previous prime is 18004214887. The next prime is 18004214951. The reversal of 18004214928 is 82941240081.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26791651 + ... + 26792322.

Almost surely, 2^18004214928 is an apocalyptic number.

It is an amenable number.

18004214928 is an abundant number, since it is smaller than the sum of its proper divisors (35151087280).

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

18004214928 is a wasteful number, since it uses less digits than its factorization.

18004214928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53583991 (or 53583985 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The spelling of 18004214928 in words is "eighteen billion, four million, two hundred fourteen thousand, nine hundred twenty-eight".