18559095872 has 28 divisors (see below), whose sum is σ = 38016216576. Its totient is φ = 8980206720.

The previous prime is 18559095869. The next prime is 18559095881. The reversal of 18559095872 is 27859095581.

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, 4675208 + ... + 4679175.

Almost surely, 2^18559095872 is an apocalyptic number.

It is an amenable number.

18559095872 is an abundant number, since it is smaller than the sum of its proper divisors (19457120704).

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

18559095872 is an equidigital number, since it uses as much as digits as its factorization.

18559095872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354426 (or 9354416 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 59.

The spelling of 18559095872 in words is "eighteen billion, five hundred fifty-nine million, ninety-five thousand, eight hundred seventy-two".