318877160957 has 2 divisors, whose sum is σ = 318877160958. Its totient is φ = 318877160956.

The previous prime is 318877160923. The next prime is 318877160977. The reversal of 318877160957 is 759061778813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311750255716 + 7126905241 = 558346^2 + 84421^2 .

It is a cyclic number.

It is not a de Polignac number, because 318877160957 - 2⁶ = 318877160893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 318877160957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318877160977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159438580478 + 159438580479.

It is an arithmetic number, because the mean of its divisors is an integer number (159438580479).

Almost surely, 2^318877160957 is an apocalyptic number.

It is an amenable number.

318877160957 is a deficient number, since it is larger than the sum of its proper divisors (1).

318877160957 is an equidigital number, since it uses as much as digits as its factorization.

318877160957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17781120, while the sum is 62.

The spelling of 318877160957 in words is "three hundred eighteen billion, eight hundred seventy-seven million, one hundred sixty thousand, nine hundred fifty-seven".