118157756831 has 2 divisors, whose sum is σ = 118157756832. Its totient is φ = 118157756830.

The previous prime is 118157756813. The next prime is 118157756887. The reversal of 118157756831 is 138657751811.

Together with previous prime (118157756813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118157756831 - 2⁶ = 118157756767 is a prime.

It is a super-2 number, since 2×118157756831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118157756891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59078878415 + 59078878416.

It is an arithmetic number, because the mean of its divisors is an integer number (59078878416).

Almost surely, 2^118157756831 is an apocalyptic number.

118157756831 is a deficient number, since it is larger than the sum of its proper divisors (1).

118157756831 is an equidigital number, since it uses as much as digits as its factorization.

118157756831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 53.

The spelling of 118157756831 in words is "one hundred eighteen billion, one hundred fifty-seven million, seven hundred fifty-six thousand, eight hundred thirty-one".