517215363063131 has 12 divisors (see below), whose sum is σ = 545873146758000. Its totient is φ = 489990635743248.

The previous prime is 517215363063079. The next prime is 517215363063149. The reversal of 517215363063131 is 131360363512715.

It is not a de Polignac number, because 517215363063131 - 2³⁰ = 517214289321307 is a prime.

It is a super-2 number, since 2×517215363063131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (517215363063181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58927325 + ... + 67133153.

It is an arithmetic number, because the mean of its divisors is an integer number (45489428896500).

Almost surely, 2^{517215363063131} is an apocalyptic number.

517215363063131 is a deficient number, since it is larger than the sum of its proper divisors (28657783694869).

517215363063131 is a wasteful number, since it uses less digits than its factorization.

517215363063131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380466 (or 8380447 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 47.

The spelling of 517215363063131 in words is "five hundred seventeen trillion, two hundred fifteen billion, three hundred sixty-three million, sixty-three thousand, one hundred thirty-one".