18512339304 has 32 divisors (see below), whose sum is σ = 46307812320. Its totient is φ = 6167184576.

The previous prime is 18512339267. The next prime is 18512339327. The reversal of 18512339304 is 40393321581.

It is a happy number.

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, 182487 + ... + 265190.

It is an arithmetic number, because the mean of its divisors is an integer number (1447119135).

Almost surely, 2^18512339304 is an apocalyptic number.

It is an amenable number.

18512339304 is an abundant number, since it is smaller than the sum of its proper divisors (27795473016).

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

18512339304 is a wasteful number, since it uses less digits than its factorization.

18512339304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449409 (or 449405 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 18512339304 in words is "eighteen billion, five hundred twelve million, three hundred thirty-nine thousand, three hundred four".