317641578409 has 9 divisors (see below), whose sum is σ = 335250751773. Its totient is φ = 300913455852.

The previous prime is 317641578377. The next prime is 317641578421. The reversal of 317641578409 is 904875146713.

The square root of 317641578409 is 563597.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 317641578409 - 2⁵ = 317641578377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 317641578409.

It is not an unprimeable number, because it can be changed into a prime (317641578509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10693512 + ... + 10723174.

Almost surely, 2^317641578409 is an apocalyptic number.

317641578409 is the 563597-th square number.

317641578409 is the 281799-th centered octagonal number.

It is an amenable number.

317641578409 is a deficient number, since it is larger than the sum of its proper divisors (17609173364).

317641578409 is an frugal number, since it uses more digits than its factorization.

317641578409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59364 (or 29682 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 317641578409 in words is "three hundred seventeen billion, six hundred forty-one million, five hundred seventy-eight thousand, four hundred nine".