317140376621 has 4 divisors (see below), whose sum is σ = 330929088672. Its totient is φ = 303351664572.

The previous prime is 317140376591. The next prime is 317140376659. The reversal of 317140376621 is 126673041713.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 317140376621 - 2²⁶ = 317073267757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317140376321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6894355991 + ... + 6894356036.

It is an arithmetic number, because the mean of its divisors is an integer number (82732272168).

Almost surely, 2^317140376621 is an apocalyptic number.

It is an amenable number.

317140376621 is a deficient number, since it is larger than the sum of its proper divisors (13788712051).

317140376621 is a wasteful number, since it uses less digits than its factorization.

317140376621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13788712050.

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 317140376621 in words is "three hundred seventeen billion, one hundred forty million, three hundred seventy-six thousand, six hundred twenty-one".