18917083204 has 24 divisors (see below), whose sum is σ = 33864082560. Its totient is φ = 9242283936.

The previous prime is 18917083201. The next prime is 18917083327. The reversal of 18917083204 is 40238071981.

It is not an unprimeable number, because it can be changed into a prime (18917083201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35094 + ... + 197650.

It is an arithmetic number, because the mean of its divisors is an integer number (1411003440).

Almost surely, 2^18917083204 is an apocalyptic number.

It is an amenable number.

18917083204 is a deficient number, since it is larger than the sum of its proper divisors (14946999356).

18917083204 is a wasteful number, since it uses less digits than its factorization.

18917083204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163227 (or 163225 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 18917083204 in words is "eighteen billion, nine hundred seventeen million, eighty-three thousand, two hundred four".