517170888072 has 64 divisors (see below), whose sum is σ = 1436655264000. Its totient is φ = 172381960512.

The previous prime is 517170888067. The next prime is 517170888109. The reversal of 517170888072 is 270888071715.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 5778738 + ... + 5867550.

It is an arithmetic number, because the mean of its divisors is an integer number (22447738500).

Almost surely, 2^517170888072 is an apocalyptic number.

It is an amenable number.

517170888072 is an abundant number, since it is smaller than the sum of its proper divisors (919484375928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

517170888072 is a wasteful number, since it uses less digits than its factorization.

517170888072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115787 (or 115777 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 54.

The spelling of 517170888072 in words is "five hundred seventeen billion, one hundred seventy million, eight hundred eighty-eight thousand, seventy-two".