18064879408 has 40 divisors (see below), whose sum is σ = 35960287680. Its totient is φ = 8784990720.

The previous prime is 18064879277. The next prime is 18064879411. The reversal of 18064879408 is 80497846081.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2411028 + ... + 2418508.

It is an arithmetic number, because the mean of its divisors is an integer number (899007192).

Almost surely, 2^18064879408 is an apocalyptic number.

It is an amenable number.

18064879408 is a deficient number, since it is larger than the sum of its proper divisors (17895408272).

18064879408 is a wasteful number, since it uses less digits than its factorization.

18064879408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11605 (or 11599 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 18064879408 in words is "eighteen billion, sixty-four million, eight hundred seventy-nine thousand, four hundred eight".