316585810421 has 4 divisors (see below), whose sum is σ = 318682405344. Its totient is φ = 314489215500.

The previous prime is 316585810397. The next prime is 316585810423. The reversal of 316585810421 is 124018585613.

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 316585810421 - 2²⁶ = 316518701557 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 (316585810423) 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 3 ways as a sum of consecutive naturals, for example, 1048297235 + ... + 1048297536.

It is an arithmetic number, because the mean of its divisors is an integer number (79670601336).

Almost surely, 2^316585810421 is an apocalyptic number.

It is an amenable number.

316585810421 is a deficient number, since it is larger than the sum of its proper divisors (2096594923).

316585810421 is a wasteful number, since it uses less digits than its factorization.

316585810421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096594922.

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 316585810421 in words is "three hundred sixteen billion, five hundred eighty-five million, eight hundred ten thousand, four hundred twenty-one".