517202830172 has 48 divisors (see below), whose sum is σ = 1102631040000. Its totient is φ = 207333981504.

The previous prime is 517202830171. The next prime is 517202830187. The reversal of 517202830172 is 271038202715.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517202830171) 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, 6111047 + ... + 6195102.

It is an arithmetic number, because the mean of its divisors is an integer number (22971480000).

Almost surely, 2^517202830172 is an apocalyptic number.

It is an amenable number.

517202830172 is an abundant number, since it is smaller than the sum of its proper divisors (585428209828).

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

517202830172 is a wasteful number, since it uses less digits than its factorization.

517202830172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12306258 (or 12306256 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 517202830172 in words is "five hundred seventeen billion, two hundred two million, eight hundred thirty thousand, one hundred seventy-two".