313817317636 has 9 divisors (see below), whose sum is σ = 549182266549. Its totient is φ = 156908098624.

The previous prime is 313817317603. The next prime is 313817317637. The reversal of 313817317636 is 636713718313.

The square root of 313817317636 is 560194.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 312671088900 + 1146228736 = 559170^2 + 33856^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313817317636.

It is not an unprimeable number, because it can be changed into a prime (313817317637) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 980340 + ... + 1260436.

Almost surely, 2^313817317636 is an apocalyptic number.

313817317636 is the 560194-th square number.

It is an amenable number.

313817317636 is a deficient number, since it is larger than the sum of its proper divisors (235364948913).

313817317636 is an frugal number, since it uses more digits than its factorization.

313817317636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560198 (or 280099 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 49.

Multiplying 313817317636 by its sum of digits (49), we get a square (15377048564164 = 3921358²).

The spelling of 313817317636 in words is "three hundred thirteen billion, eight hundred seventeen million, three hundred seventeen thousand, six hundred thirty-six".