18367472764 has 6 divisors (see below), whose sum is σ = 32143077344. Its totient is φ = 9183736380.

The previous prime is 18367472743. The next prime is 18367472819. The reversal of 18367472764 is 46727476381.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2295934092 + ... + 2295934099.

Almost surely, 2^18367472764 is an apocalyptic number.

It is an amenable number.

18367472764 is a deficient number, since it is larger than the sum of its proper divisors (13775604580).

18367472764 is a wasteful number, since it uses less digits than its factorization.

18367472764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591868195 (or 4591868193 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 55.

The spelling of 18367472764 in words is "eighteen billion, three hundred sixty-seven million, four hundred seventy-two thousand, seven hundred sixty-four".