517547870464 has 27 divisors (see below), whose sum is σ = 1033097046163. Its totient is φ = 258768179968.

The previous prime is 517547870449. The next prime is 517547870467. The reversal of 517547870464 is 464078745715.

The square root of 517547870464 is 719408.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 517547870399 and 517547870408.

It is not an unprimeable number, because it can be changed into a prime (517547870467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11488047 + ... + 11533009.

Almost surely, 2^517547870464 is an apocalyptic number.

517547870464 is the 719408-th square number.

It is an amenable number.

517547870464 is a deficient number, since it is larger than the sum of its proper divisors (515549175699).

517547870464 is an frugal number, since it uses more digits than its factorization.

517547870464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89942 (or 44965 counting only the distinct ones).

The product of its (nonzero) digits is 26342400, while the sum is 58.

The spelling of 517547870464 in words is "five hundred seventeen billion, five hundred forty-seven million, eight hundred seventy thousand, four hundred sixty-four".