317668637485 has 8 divisors (see below), whose sum is σ = 381291104376. Its totient is φ = 254075750400.

The previous prime is 317668637477. The next prime is 317668637491. The reversal of 317668637485 is 584736866713.

It can be written as a sum of positive squares in 4 ways, for example, as 23317900804 + 294350736681 = 152702^2 + 542541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 317668637485 - 2³ = 317668637477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7371316 + ... + 7414285.

It is an arithmetic number, because the mean of its divisors is an integer number (47661388047).

Almost surely, 2^317668637485 is an apocalyptic number.

It is an amenable number.

317668637485 is a deficient number, since it is larger than the sum of its proper divisors (63622466891).

317668637485 is a wasteful number, since it uses less digits than its factorization.

317668637485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14789903.

The product of its digits is 121927680, while the sum is 64.

The spelling of 317668637485 in words is "three hundred seventeen billion, six hundred sixty-eight million, six hundred thirty-seven thousand, four hundred eighty-five".