18044773232 has 10 divisors (see below), whose sum is σ = 34961748168. Its totient is φ = 9022386608.

The previous prime is 18044773223. The next prime is 18044773247. The reversal of 18044773232 is 23237744081.

It is a super-2 number, since 2×18044773232² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18044773232.

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, 563899148 + ... + 563899179.

Almost surely, 2^18044773232 is an apocalyptic number.

It is an amenable number.

18044773232 is a deficient number, since it is larger than the sum of its proper divisors (16916974936).

18044773232 is a wasteful number, since it uses less digits than its factorization.

18044773232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127798335 (or 1127798329 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 18044773232 in words is "eighteen billion, forty-four million, seven hundred seventy-three thousand, two hundred thirty-two".