117689260957 has 4 divisors (see below), whose sum is σ = 117730457116. Its totient is φ = 117648064800.

The previous prime is 117689260943. The next prime is 117689261017. The reversal of 117689260957 is 759062986711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 759062986711 = 47 ⋅16150276313.

It can be written as a sum of positive squares in 2 ways, for example, as 100029243076 + 17660017881 = 316274^2 + 132891^2 .

It is a cyclic number.

It is not a de Polignac number, because 117689260957 - 2²³ = 117680872349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117689260895 and 117689260904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117689260057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20593794 + ... + 20599507.

It is an arithmetic number, because the mean of its divisors is an integer number (29432614279).

Almost surely, 2^117689260957 is an apocalyptic number.

It is an amenable number.

117689260957 is a deficient number, since it is larger than the sum of its proper divisors (41196159).

117689260957 is an equidigital number, since it uses as much as digits as its factorization.

117689260957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41196158.

The product of its (nonzero) digits is 11430720, while the sum is 61.

The spelling of 117689260957 in words is "one hundred seventeen billion, six hundred eighty-nine million, two hundred sixty thousand, nine hundred fifty-seven".