517853342317 has 2 divisors, whose sum is σ = 517853342318. Its totient is φ = 517853342316.

The previous prime is 517853342309. The next prime is 517853342381. The reversal of 517853342317 is 713243358715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383174618121 + 134678724196 = 619011^2 + 366986^2 .

It is a cyclic number.

It is not a de Polignac number, because 517853342317 - 2³ = 517853342309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517853342717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258926671158 + 258926671159.

It is an arithmetic number, because the mean of its divisors is an integer number (258926671159).

Almost surely, 2^517853342317 is an apocalyptic number.

It is an amenable number.

517853342317 is a deficient number, since it is larger than the sum of its proper divisors (1).

517853342317 is an equidigital number, since it uses as much as digits as its factorization.

517853342317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 49.

The spelling of 517853342317 in words is "five hundred seventeen billion, eight hundred fifty-three million, three hundred forty-two thousand, three hundred seventeen".