18485206204 has 12 divisors (see below), whose sum is σ = 32356966824. Its totient is φ = 9240358544.

The previous prime is 18485206193. The next prime is 18485206273. The reversal of 18485206204 is 40260258481.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542542 + ... + 575605.

It is an arithmetic number, because the mean of its divisors is an integer number (2696413902).

Almost surely, 2^18485206204 is an apocalyptic number.

It is an amenable number.

18485206204 is a deficient number, since it is larger than the sum of its proper divisors (13871760620).

18485206204 is a wasteful number, since it uses less digits than its factorization.

18485206204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122284 (or 1122282 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The spelling of 18485206204 in words is "eighteen billion, four hundred eighty-five million, two hundred six thousand, two hundred four".