315511615423057 has 2 divisors, whose sum is σ = 315511615423058. Its totient is φ = 315511615423056.

The previous prime is 315511615423027. The next prime is 315511615423063. The reversal of 315511615423057 is 750324516115513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161437760225856 + 154073855197201 = 12705816^2 + 12412649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315511615423057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315511615423057.

It is not a weakly prime, because it can be changed into another prime (315511615423027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157755807711528 + 157755807711529.

It is an arithmetic number, because the mean of its divisors is an integer number (157755807711529).

Almost surely, 2^{315511615423057} is an apocalyptic number.

It is an amenable number.

315511615423057 is a deficient number, since it is larger than the sum of its proper divisors (1).

315511615423057 is an equidigital number, since it uses as much as digits as its factorization.

315511615423057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890000, while the sum is 49.

The spelling of 315511615423057 in words is "three hundred fifteen trillion, five hundred eleven billion, six hundred fifteen million, four hundred twenty-three thousand, fifty-seven".