18854960672 has 24 divisors (see below), whose sum is σ = 37910509056. Its totient is φ = 9226894912.

The previous prime is 18854960659. The next prime is 18854960693. The reversal of 18854960672 is 27606945881.

It is a happy 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, 6266768 + ... + 6269775.

It is an arithmetic number, because the mean of its divisors is an integer number (1579604544).

Almost surely, 2^18854960672 is an apocalyptic number.

It is an amenable number.

18854960672 is an abundant number, since it is smaller than the sum of its proper divisors (19055548384).

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

18854960672 is a wasteful number, since it uses less digits than its factorization.

18854960672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536600 (or 12536592 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 18854960672 in words is "eighteen billion, eight hundred fifty-four million, nine hundred sixty thousand, six hundred seventy-two".