317158860172 has 96 divisors (see below), whose sum is σ = 729018017280. Its totient is φ = 116965969920.

The previous prime is 317158860167. The next prime is 317158860173. The reversal of 317158860172 is 271068851713.

It is a super-3 number, since 3×317158860172³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (317158860173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7099618 + ... + 7144150.

It is an arithmetic number, because the mean of its divisors is an integer number (7593937680).

Almost surely, 2^317158860172 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 317158860172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364509008640).

317158860172 is an abundant number, since it is smaller than the sum of its proper divisors (411859157108).

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

317158860172 is a wasteful number, since it uses less digits than its factorization.

317158860172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45791 (or 45789 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 49.

The spelling of 317158860172 in words is "three hundred seventeen billion, one hundred fifty-eight million, eight hundred sixty thousand, one hundred seventy-two".