18940074225696 has 72 divisors (see below), whose sum is σ = 58003977327660. Its totient is φ = 5827715145216.

The previous prime is 18940074225623. The next prime is 18940074225749. The reversal of 18940074225696 is 69652247004981.

18940074225696 is a `hidden beast` number, since 1 + 8 + 9 + 40 + 0 + 7 + 4 + 22 + 569 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18224053633296 + 716020592400 = 4268964^2 + 846180^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2529386511 + ... + 2529393998.

Almost surely, 2^{18940074225696} is an apocalyptic number.

18940074225696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18940074225696 is an abundant number, since it is smaller than the sum of its proper divisors (39063903101964).

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

18940074225696 is a wasteful number, since it uses less digits than its factorization.

18940074225696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058780538 (or 5058780527 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 18940074225696 in words is "eighteen trillion, nine hundred forty billion, seventy-four million, two hundred twenty-five thousand, six hundred ninety-six".