517143045725231 has 8 divisors (see below), whose sum is σ = 523811056607904. Its totient is φ = 510506711854560.

The previous prime is 517143045725227. The next prime is 517143045725233. The reversal of 517143045725231 is 132527540341715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 517143045725231 - 2² = 517143045725227 is a prime.

It is a super-2 number, since 2×517143045725231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 517143045725231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517143045725233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7919220140 + ... + 7919285441.

It is an arithmetic number, because the mean of its divisors is an integer number (65476382075988).

Almost surely, 2^{517143045725231} is an apocalyptic number.

517143045725231 is a deficient number, since it is larger than the sum of its proper divisors (6668010882673).

517143045725231 is a wasteful number, since it uses less digits than its factorization.

517143045725231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15838506001.

The product of its (nonzero) digits is 3528000, while the sum is 50.

The spelling of 517143045725231 in words is "five hundred seventeen trillion, one hundred forty-three billion, forty-five million, seven hundred twenty-five thousand, two hundred thirty-one".