116857815377 has 2 divisors, whose sum is σ = 116857815378. Its totient is φ = 116857815376.

The previous prime is 116857815323. The next prime is 116857815383. The reversal of 116857815377 is 773518758611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108319316161 + 8538499216 = 329119^2 + 92404^2 .

It is a cyclic number.

It is not a de Polignac number, because 116857815377 - 2⁸ = 116857815121 is a prime.

It is not a weakly prime, because it can be changed into another prime (116857815577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58428907688 + 58428907689.

It is an arithmetic number, because the mean of its divisors is an integer number (58428907689).

Almost surely, 2^116857815377 is an apocalyptic number.

It is an amenable number.

116857815377 is a deficient number, since it is larger than the sum of its proper divisors (1).

116857815377 is an equidigital number, since it uses as much as digits as its factorization.

116857815377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9878400, while the sum is 59.

The spelling of 116857815377 in words is "one hundred sixteen billion, eight hundred fifty-seven million, eight hundred fifteen thousand, three hundred seventy-seven".