11647115764 has 24 divisors (see below), whose sum is σ = 21008405376. Its totient is φ = 5647404000.

The previous prime is 11647115759. The next prime is 11647115789. The reversal of 11647115764 is 46751174611.

It is a self number, because there is not a number n which added to its sum of digits gives 11647115764.

It is a congruent number.

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, 318832 + ... + 353479.

It is an arithmetic number, because the mean of its divisors is an integer number (875350224).

Almost surely, 2^11647115764 is an apocalyptic number.

It is an amenable number.

11647115764 is a deficient number, since it is larger than the sum of its proper divisors (9361289612).

11647115764 is a wasteful number, since it uses less digits than its factorization.

11647115764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672447 (or 672445 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The spelling of 11647115764 in words is "eleven billion, six hundred forty-seven million, one hundred fifteen thousand, seven hundred sixty-four".