317143720689 has 8 divisors (see below), whose sum is σ = 427952972832. Its totient is φ = 208881807840.

The previous prime is 317143720627. The next prime is 317143720697. The reversal of 317143720689 is 986027341713.

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 317143720689 - 2⁷ = 317143720561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (317143721689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636834532 + ... + 636835029.

It is an arithmetic number, because the mean of its divisors is an integer number (53494121604).

Almost surely, 2^317143720689 is an apocalyptic number.

It is an amenable number.

317143720689 is a deficient number, since it is larger than the sum of its proper divisors (110809252143).

317143720689 is a wasteful number, since it uses less digits than its factorization.

317143720689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273669647.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 317143720689 in words is "three hundred seventeen billion, one hundred forty-three million, seven hundred twenty thousand, six hundred eighty-nine".