115531713747 has 32 divisors (see below), whose sum is σ = 187999756800. Its totient is φ = 69794895456.

The previous prime is 115531713707. The next prime is 115531713761. The reversal of 115531713747 is 747317135511.

115531713747 is a `hidden beast` number, since 1 + 1 + 5 + 531 + 71 + 3 + 7 + 47 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-115531713747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115531713707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4884028 + ... + 4907625.

It is an arithmetic number, because the mean of its divisors is an integer number (5874992400).

Almost surely, 2^115531713747 is an apocalyptic number.

115531713747 is a deficient number, since it is larger than the sum of its proper divisors (72468043053).

115531713747 is a wasteful number, since it uses less digits than its factorization.

115531713747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791704 (or 9791698 counting only the distinct ones).

The product of its digits is 308700, while the sum is 45.

The spelling of 115531713747 in words is "one hundred fifteen billion, five hundred thirty-one million, seven hundred thirteen thousand, seven hundred forty-seven".