18311577304 has 16 divisors (see below), whose sum is σ = 34381059120. Its totient is φ = 9143294880.

The previous prime is 18311577299. The next prime is 18311577331. The reversal of 18311577304 is 40377511381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555492 + ... + 1567219.

It is an arithmetic number, because the mean of its divisors is an integer number (2148816195).

Almost surely, 2^18311577304 is an apocalyptic number.

It is an amenable number.

18311577304 is a deficient number, since it is larger than the sum of its proper divisors (16069481816).

18311577304 is a wasteful number, since it uses less digits than its factorization.

18311577304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123450 (or 3123446 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 18311577304 in words is "eighteen billion, three hundred eleven million, five hundred seventy-seven thousand, three hundred four".