18479605056 has 56 divisors (see below), whose sum is σ = 53338866144. Its totient is φ = 5599879680.

The previous prime is 18479605033. The next prime is 18479605097. The reversal of 18479605056 is 65050697481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4372795 + ... + 4377018.

Almost surely, 2^18479605056 is an apocalyptic number.

18479605056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18479605056 is an abundant number, since it is smaller than the sum of its proper divisors (34859261088).

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

18479605056 is a wasteful number, since it uses less digits than its factorization.

18479605056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8749839 (or 8749829 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 18479605056 in words is "eighteen billion, four hundred seventy-nine million, six hundred five thousand, fifty-six".