18618330928 has 10 divisors (see below), whose sum is σ = 36073016204. Its totient is φ = 9309165456.

The previous prime is 18618330911. The next prime is 18618330931. The reversal of 18618330928 is 82903381681.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581822826 + ... + 581822857.

Almost surely, 2^18618330928 is an apocalyptic number.

It is an amenable number.

18618330928 is a deficient number, since it is larger than the sum of its proper divisors (17454685276).

18618330928 is a wasteful number, since it uses less digits than its factorization.

18618330928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163645691 (or 1163645685 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 18618330928 in words is "eighteen billion, six hundred eighteen million, three hundred thirty thousand, nine hundred twenty-eight".