11731136464 has 20 divisors (see below), whose sum is σ = 22790024356. Its totient is φ = 5849839872.

The previous prime is 11731136449. The next prime is 11731136477. The reversal of 11731136464 is 46463113711.

It can be written as a sum of positive squares in 2 ways, for example, as 8082010000 + 3649126464 = 89900^2 + 60408^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976869 + ... + 988804.

Almost surely, 2^11731136464 is an apocalyptic number.

It is an amenable number.

11731136464 is a deficient number, since it is larger than the sum of its proper divisors (11058887892).

11731136464 is a wasteful number, since it uses less digits than its factorization.

11731136464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966054 (or 1966048 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The spelling of 11731136464 in words is "eleven billion, seven hundred thirty-one million, one hundred thirty-six thousand, four hundred sixty-four".