11915318688 has 96 divisors (see below), whose sum is σ = 38495673216. Its totient is φ = 3142499328.

The previous prime is 11915318677. The next prime is 11915318713. The reversal of 11915318688 is 88681351911.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×11915318688³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11915318688.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673231 + ... + 690702.

It is an arithmetic number, because the mean of its divisors is an integer number (400996596).

Almost surely, 2^11915318688 is an apocalyptic number.

It is an amenable number.

11915318688 is an abundant number, since it is smaller than the sum of its proper divisors (26580354528).

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

11915318688 is a wasteful number, since it uses less digits than its factorization.

11915318688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363966 (or 1363958 counting only the distinct ones).

The product of its digits is 414720, while the sum is 51.

The spelling of 11915318688 in words is "eleven billion, nine hundred fifteen million, three hundred eighteen thousand, six hundred eighty-eight".