18010686864 has 40 divisors (see below), whose sum is σ = 46893982720. Its totient is φ = 5956288128.

The previous prime is 18010686791. The next prime is 18010686871. The reversal of 18010686864 is 46868601081.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1471159 + ... + 1483350.

It is an arithmetic number, because the mean of its divisors is an integer number (1172349568).

Almost surely, 2^18010686864 is an apocalyptic number.

It is an amenable number.

18010686864 is an abundant number, since it is smaller than the sum of its proper divisors (28883295856).

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

18010686864 is a wasteful number, since it uses less digits than its factorization.

18010686864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954647 (or 2954641 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 18010686864 in words is "eighteen billion, ten million, six hundred eighty-six thousand, eight hundred sixty-four".