318717861834241 has 27 divisors (see below), whose sum is σ = 327673649409033. Its totient is φ = 310002348526080.

The previous prime is 318717861834179. The next prime is 318717861834247. The reversal of 318717861834241 is 142438168717813.

The square root of 318717861834241 is 17852671.

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

It can be written as a sum of positive squares in 4 ways, for example, as 145055647649025 + 173662214185216 = 12043905^2 + 13178096^2 .

It is not a de Polignac number, because 318717861834241 - 2²³ = 318717853445633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318717861834247) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 473577803281 + ... + 473577803953.

Almost surely, 2^{318717861834241} is an apocalyptic number.

318717861834241 is the 17852671-st square number.

318717861834241 is the 8926336-th centered octagonal number.

It is an amenable number.

318717861834241 is a deficient number, since it is larger than the sum of its proper divisors (8955787574792).

318717861834241 is an frugal number, since it uses more digits than its factorization.

318717861834241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722 (or 1361 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 64.

The spelling of 318717861834241 in words is "three hundred eighteen trillion, seven hundred seventeen billion, eight hundred sixty-one million, eight hundred thirty-four thousand, two hundred forty-one".