18697379876 has 48 divisors (see below), whose sum is σ = 37976795136. Its totient is φ = 7889366304.

The previous prime is 18697379851. The next prime is 18697379881. The reversal of 18697379876 is 67897379681.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469205 + ... + 507491.

It is an arithmetic number, because the mean of its divisors is an integer number (791183232).

Almost surely, 2^18697379876 is an apocalyptic number.

It is an amenable number.

18697379876 is an abundant number, since it is smaller than the sum of its proper divisors (19279415260).

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

18697379876 is a wasteful number, since it uses less digits than its factorization.

18697379876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38568 (or 38566 counting only the distinct ones).

The product of its digits is 192036096, while the sum is 71.

The spelling of 18697379876 in words is "eighteen billion, six hundred ninety-seven million, three hundred seventy-nine thousand, eight hundred seventy-six".