18336879168 has 56 divisors (see below), whose sum is σ = 50625743808. Its totient is φ = 5846539776.

The previous prime is 18336879151. The next prime is 18336879181. The reversal of 18336879168 is 86197863381.

It is a super-2 number, since 2×18336879168² (a number of 21 digits) contains 22 as substring.

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, 2071771 + ... + 2080602.

Almost surely, 2^18336879168 is an apocalyptic number.

It is an amenable number.

18336879168 is an abundant number, since it is smaller than the sum of its proper divisors (32288864640).

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

18336879168 is a wasteful number, since it uses less digits than its factorization.

18336879168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4152411 (or 4152401 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 60.

The spelling of 18336879168 in words is "eighteen billion, three hundred thirty-six million, eight hundred seventy-nine thousand, one hundred sixty-eight".