18804978032 has 40 divisors (see below), whose sum is σ = 37005555600. Its totient is φ = 9256084992.

The previous prime is 18804978029. The next prime is 18804978061. The reversal of 18804978032 is 23087940881.

It is a congruent 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, 297263 + ... + 354929.

It is an arithmetic number, because the mean of its divisors is an integer number (925138890).

Almost surely, 2^18804978032 is an apocalyptic number.

It is an amenable number.

18804978032 is a deficient number, since it is larger than the sum of its proper divisors (18200577568).

18804978032 is a wasteful number, since it uses less digits than its factorization.

18804978032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57993 (or 57987 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 18804978032 in words is "eighteen billion, eight hundred four million, nine hundred seventy-eight thousand, thirty-two".