117431776513 has 4 divisors (see below), whose sum is σ = 121219898368. Its totient is φ = 113643654660.

The previous prime is 117431776477. The next prime is 117431776519. The reversal of 117431776513 is 315677134711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117431776513 - 2³³ = 108841841921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117431776519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1894060881 + ... + 1894060942.

It is an arithmetic number, because the mean of its divisors is an integer number (30304974592).

Almost surely, 2^117431776513 is an apocalyptic number.

It is an amenable number.

117431776513 is a deficient number, since it is larger than the sum of its proper divisors (3788121855).

117431776513 is an equidigital number, since it uses as much as digits as its factorization.

117431776513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788121854.

The product of its digits is 370440, while the sum is 46.

The spelling of 117431776513 in words is "one hundred seventeen billion, four hundred thirty-one million, seven hundred seventy-six thousand, five hundred thirteen".