517072684085 has 16 divisors (see below), whose sum is σ = 621358907760. Its totient is φ = 413077217280.

The previous prime is 517072684057. The next prime is 517072684099. The reversal of 517072684085 is 580486270715.

It can be written as a sum of positive squares in 8 ways, for example, as 8729351761 + 508343332324 = 93431^2 + 712982^2 .

It is not a de Polignac number, because 517072684085 - 2²⁸ = 516804248629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33936629 + ... + 33951861.

It is an arithmetic number, because the mean of its divisors is an integer number (38834931735).

Almost surely, 2^517072684085 is an apocalyptic number.

It is an amenable number.

517072684085 is a deficient number, since it is larger than the sum of its proper divisors (104286223675).

517072684085 is a wasteful number, since it uses less digits than its factorization.

517072684085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24328.

The product of its (nonzero) digits is 3763200, while the sum is 53.

The spelling of 517072684085 in words is "five hundred seventeen billion, seventy-two million, six hundred eighty-four thousand, eighty-five".