517157122472 has 16 divisors (see below), whose sum is σ = 969686298240. Its totient is φ = 258574109616.

The previous prime is 517157122441. The next prime is 517157122483. The reversal of 517157122472 is 274221751715.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33848 + ... + 1017575.

It is an arithmetic number, because the mean of its divisors is an integer number (60605393640).

Almost surely, 2^517157122472 is an apocalyptic number.

It is an amenable number.

517157122472 is a deficient number, since it is larger than the sum of its proper divisors (452529175768).

517157122472 is a wasteful number, since it uses less digits than its factorization.

517157122472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112912 (or 1112908 counting only the distinct ones).

The product of its digits is 274400, while the sum is 44.

The spelling of 517157122472 in words is "five hundred seventeen billion, one hundred fifty-seven million, one hundred twenty-two thousand, four hundred seventy-two".