317928712728 has 96 divisors (see below), whose sum is σ = 921083405760. Its totient is φ = 90674833920.

The previous prime is 317928712697. The next prime is 317928712741. The reversal of 317928712728 is 827217829713.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2007226 + ... + 2159817.

It is an arithmetic number, because the mean of its divisors is an integer number (9594618810).

Almost surely, 2^317928712728 is an apocalyptic number.

It is an amenable number.

317928712728 is an abundant number, since it is smaller than the sum of its proper divisors (603154693032).

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

317928712728 is a wasteful number, since it uses less digits than its factorization.

317928712728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167097 (or 4167076 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 57.

The spelling of 317928712728 in words is "three hundred seventeen billion, nine hundred twenty-eight million, seven hundred twelve thousand, seven hundred twenty-eight".