317594640385 has 8 divisors (see below), whose sum is σ = 415760256576. Its totient is φ = 230977920240.

The previous prime is 317594640343. The next prime is 317594640437. The reversal of 317594640385 is 583046495713.

It is a happy number.

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

It is not a de Polignac number, because 317594640385 - 2²⁵ = 317561085953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55), and also a Moran number because the ratio is a prime number: 5774448007 = 317594640385 / (3 + 1 + 7 + 5 + 9 + 4 + 6 + 4 + 0 + 3 + 8 + 5).

It is a Duffinian 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, 2887223949 + ... + 2887224058.

It is an arithmetic number, because the mean of its divisors is an integer number (51970032072).

Almost surely, 2^317594640385 is an apocalyptic number.

It is an amenable number.

317594640385 is a deficient number, since it is larger than the sum of its proper divisors (98165616191).

317594640385 is a wasteful number, since it uses less digits than its factorization.

317594640385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5774448023.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 317594640385 in words is "three hundred seventeen billion, five hundred ninety-four million, six hundred forty thousand, three hundred eighty-five".