11915318689 has 32 divisors (see below), whose sum is σ = 12846661632. Its totient is φ = 11031552000.

The previous prime is 11915318677. The next prime is 11915318713. The reversal of 11915318689 is 98681351911.

It is a cyclic number.

It is not a de Polignac number, because 11915318689 - 2²⁹ = 11378447777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11915318669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15657069 + ... + 15657829.

It is an arithmetic number, because the mean of its divisors is an integer number (401458176).

Almost surely, 2^11915318689 is an apocalyptic number.

It is an amenable number.

11915318689 is a deficient number, since it is larger than the sum of its proper divisors (931342943).

11915318689 is a wasteful number, since it uses less digits than its factorization.

11915318689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its digits is 466560, while the sum is 52.

The spelling of 11915318689 in words is "eleven billion, nine hundred fifteen million, three hundred eighteen thousand, six hundred eighty-nine".