18439950954204 has 96 divisors (see below), whose sum is σ = 52120378031680. Its totient is φ = 5673831027840.

The previous prime is 18439950954197. The next prime is 18439950954277. The reversal of 18439950954204 is 40245905993481.

18439950954204 is a `hidden beast` number, since 1 + 8 + 4 + 39 + 9 + 50 + 9 + 542 + 0 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80959537 + ... + 81186984.

Almost surely, 2^{18439950954204} is an apocalyptic number.

It is an amenable number.

18439950954204 is an abundant number, since it is smaller than the sum of its proper divisors (33680427077476).

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

18439950954204 is a wasteful number, since it uses less digits than its factorization.

18439950954204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162146559 (or 162146539 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 18439950954204 in words is "eighteen trillion, four hundred thirty-nine billion, nine hundred fifty million, nine hundred fifty-four thousand, two hundred four".