18256026858808 has 16 divisors (see below), whose sum is σ = 34230443977080. Its totient is φ = 9127908464928.

The previous prime is 18256026858781. The next prime is 18256026858871. The reversal of 18256026858808 is 80885862065281.

It is a congruent 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, 12378910 + ... + 13774957.

Almost surely, 2^{18256026858808} is an apocalyptic number.

It is an amenable number.

18256026858808 is a deficient number, since it is larger than the sum of its proper divisors (15974417118272).

18256026858808 is a wasteful number, since it uses less digits than its factorization.

18256026858808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26241126 (or 26241122 counting only the distinct ones).

The product of its (nonzero) digits is 117964800, while the sum is 67.

The spelling of 18256026858808 in words is "eighteen trillion, two hundred fifty-six billion, twenty-six million, eight hundred fifty-eight thousand, eight hundred eight".