517097512069 has 2 divisors, whose sum is σ = 517097512070. Its totient is φ = 517097512068.

The previous prime is 517097512027. The next prime is 517097512093. The reversal of 517097512069 is 960215790715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 467942187969 + 49155324100 = 684063^2 + 221710^2 .

It is a cyclic number.

It is not a de Polignac number, because 517097512069 - 2²¹ = 517095414917 is a prime.

It is a super-2 number, since 2×517097512069² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517097512969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258548756034 + 258548756035.

It is an arithmetic number, because the mean of its divisors is an integer number (258548756035).

Almost surely, 2^517097512069 is an apocalyptic number.

It is an amenable number.

517097512069 is a deficient number, since it is larger than the sum of its proper divisors (1).

517097512069 is an equidigital number, since it uses as much as digits as its factorization.

517097512069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1190700, while the sum is 52.

The spelling of 517097512069 in words is "five hundred seventeen billion, ninety-seven million, five hundred twelve thousand, sixty-nine".