517375673231 has 2 divisors, whose sum is σ = 517375673232. Its totient is φ = 517375673230.

The previous prime is 517375673203. The next prime is 517375673251. The reversal of 517375673231 is 132376573715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 517375673231 - 2²² = 517371478927 is a prime.

It is a super-2 number, since 2×517375673231² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 517375673231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517375673251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258687836615 + 258687836616.

It is an arithmetic number, because the mean of its divisors is an integer number (258687836616).

Almost surely, 2^517375673231 is an apocalyptic number.

517375673231 is a deficient number, since it is larger than the sum of its proper divisors (1).

517375673231 is an equidigital number, since it uses as much as digits as its factorization.

517375673231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2778300, while the sum is 50.

The spelling of 517375673231 in words is "five hundred seventeen billion, three hundred seventy-five million, six hundred seventy-three thousand, two hundred thirty-one".