18904276044 has 60 divisors (see below), whose sum is σ = 49974863400. Its totient is φ = 6230613312.

The previous prime is 18904276019. The next prime is 18904276093. The reversal of 18904276044 is 44067240981.

18904276044 is a `hidden beast` number, since 18 + 9 + 0 + 4 + 27 + 604 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 298954 + ... + 356625.

It is an arithmetic number, because the mean of its divisors is an integer number (832914390).

Almost surely, 2^18904276044 is an apocalyptic number.

It is an amenable number.

18904276044 is an abundant number, since it is smaller than the sum of its proper divisors (31070587356).

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

18904276044 is a wasteful number, since it uses less digits than its factorization.

18904276044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655684 (or 655673 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 18904276044 in words is "eighteen billion, nine hundred four million, two hundred seventy-six thousand, forty-four".