18170074864 has 20 divisors (see below), whose sum is σ = 35237733480. Its totient is φ = 9076466240.

The previous prime is 18170074847. The next prime is 18170074873. The reversal of 18170074864 is 46847007181.

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, 518194 + ... + 552145.

It is an arithmetic number, because the mean of its divisors is an integer number (1761886674).

Almost surely, 2^18170074864 is an apocalyptic number.

It is an amenable number.

18170074864 is a deficient number, since it is larger than the sum of its proper divisors (17067658616).

18170074864 is a wasteful number, since it uses less digits than its factorization.

18170074864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071408 (or 1071402 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 18170074864 in words is "eighteen billion, one hundred seventy million, seventy-four thousand, eight hundred sixty-four".