313645422567631 has 96 divisors (see below), whose sum is σ = 418931567774720. Its totient is φ = 229196435466240.

The previous prime is 313645422567577. The next prime is 313645422567637. The reversal of 313645422567631 is 136765224546313.

It is not a de Polignac number, because 313645422567631 - 2¹¹ = 313645422565583 is a prime.

It is a super-2 number, since 2×313645422567631² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313645422567637) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4298065861 + ... + 4298138833.

Almost surely, 2^{313645422567631} is an apocalyptic number.

313645422567631 is a deficient number, since it is larger than the sum of its proper divisors (105286145207089).

313645422567631 is a wasteful number, since it uses less digits than its factorization.

313645422567631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75717 (or 75706 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 58.

The spelling of 313645422567631 in words is "three hundred thirteen trillion, six hundred forty-five billion, four hundred twenty-two million, five hundred sixty-seven thousand, six hundred thirty-one".