517970491470 has 96 divisors (see below), whose sum is σ = 1393362734400. Its totient is φ = 133343304192.

The previous prime is 517970491457. The next prime is 517970491471. The reversal of 517970491470 is 74194079715.

It is a happy number.

517970491470 is a `hidden beast` number, since 5 + 17 + 9 + 70 + 4 + 91 + 470 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517970491471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30954066 + ... + 30970794.

It is an arithmetic number, because the mean of its divisors is an integer number (14514195150).

Almost surely, 2^517970491470 is an apocalyptic number.

517970491470 is an abundant number, since it is smaller than the sum of its proper divisors (875392242930).

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

517970491470 is a wasteful number, since it uses less digits than its factorization.

517970491470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28634 (or 28631 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 54.

The spelling of 517970491470 in words is "five hundred seventeen billion, nine hundred seventy million, four hundred ninety-one thousand, four hundred seventy".