18458608204 has 12 divisors (see below), whose sum is σ = 32443625200. Its totient is φ = 9189001008.

The previous prime is 18458608171. The next prime is 18458608213. The reversal of 18458608204 is 40280685481.

It is a super-2 number, since 2×18458608204² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10074744 + ... + 10076575.

Almost surely, 2^18458608204 is an apocalyptic number.

It is an amenable number.

18458608204 is a deficient number, since it is larger than the sum of its proper divisors (13985016996).

18458608204 is a wasteful number, since it uses less digits than its factorization.

18458608204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20151552 (or 20151550 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 46.

The spelling of 18458608204 in words is "eighteen billion, four hundred fifty-eight million, six hundred eight thousand, two hundred four".