117256156879 has 2 divisors, whose sum is σ = 117256156880. Its totient is φ = 117256156878.

The previous prime is 117256156873. The next prime is 117256156889. The reversal of 117256156879 is 978651652711.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117256156879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117256156873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58628078439 + 58628078440.

It is an arithmetic number, because the mean of its divisors is an integer number (58628078440).

Almost surely, 2^117256156879 is an apocalyptic number.

117256156879 is a deficient number, since it is larger than the sum of its proper divisors (1).

117256156879 is an equidigital number, since it uses as much as digits as its factorization.

117256156879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6350400, while the sum is 58.

The spelling of 117256156879 in words is "one hundred seventeen billion, two hundred fifty-six million, one hundred fifty-six thousand, eight hundred seventy-nine".