517307028940 has 48 divisors (see below), whose sum is σ = 1191983542848. Its totient is φ = 187401786624.

The previous prime is 517307028899. The next prime is 517307028943. The reversal of 517307028940 is 49820703715.

It is not an unprimeable number, because it can be changed into a prime (517307028943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18756432 + ... + 18783991.

It is an arithmetic number, because the mean of its divisors is an integer number (24832990476).

Almost surely, 2^517307028940 is an apocalyptic number.

It is an amenable number.

517307028940 is an abundant number, since it is smaller than the sum of its proper divisors (674676513908).

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

517307028940 is a wasteful number, since it uses less digits than its factorization.

517307028940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37540498 (or 37540496 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 517307028940 in words is "five hundred seventeen billion, three hundred seven million, twenty-eight thousand, nine hundred forty".