512361242163217 has 2 divisors, whose sum is σ = 512361242163218. Its totient is φ = 512361242163216.

The previous prime is 512361242163181. The next prime is 512361242163227. The reversal of 512361242163217 is 712361242163215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512345216881936 + 16025281281 = 22635044^2 + 126591^2 .

It is a cyclic number.

It is not a de Polignac number, because 512361242163217 - 2²³ = 512361233774609 is a prime.

It is not a weakly prime, because it can be changed into another prime (512361242163227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256180621081608 + 256180621081609.

It is an arithmetic number, because the mean of its divisors is an integer number (256180621081609).

Almost surely, 2^{512361242163217} is an apocalyptic number.

It is an amenable number.

512361242163217 is a deficient number, since it is larger than the sum of its proper divisors (1).

512361242163217 is an equidigital number, since it uses as much as digits as its factorization.

512361242163217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 46.

The spelling of 512361242163217 in words is "five hundred twelve trillion, three hundred sixty-one billion, two hundred forty-two million, one hundred sixty-three thousand, two hundred seventeen".