317739917684 has 72 divisors (see below), whose sum is σ = 668089175040. Its totient is φ = 131703364800.

The previous prime is 317739917641. The next prime is 317739917699. The reversal of 317739917684 is 486719937713.

It is a self number, because there is not a number n which added to its sum of digits gives 317739917684.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10855349 + ... + 10884579.

It is an arithmetic number, because the mean of its divisors is an integer number (9279016320).

Almost surely, 2^317739917684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317739917684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334044587520).

317739917684 is an abundant number, since it is smaller than the sum of its proper divisors (350349257356).

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

317739917684 is a wasteful number, since it uses less digits than its factorization.

317739917684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31069 (or 31060 counting only the distinct ones).

The product of its digits is 48009024, while the sum is 65.

The spelling of 317739917684 in words is "three hundred seventeen billion, seven hundred thirty-nine million, nine hundred seventeen thousand, six hundred eighty-four".