317025467533681 has 3 divisors (see below), whose sum is σ = 317025485338891. Its totient is φ = 317025449728472.

The previous prime is 317025467533639. The next prime is 317025467533703. The reversal of 317025467533681 is 186335764520713.

The square root of 317025467533681 is 17805209.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 189739519281 + 316835728014400 = 435591^2 + 17799880^2 .

It is not a de Polignac number, because 317025467533681 - 2¹⁵ = 317025467500913 is a prime.

It is a super-4 number, since 4×317025467533681⁴ (a number of 59 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317025467533981) 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, 8902605 + ... + 26707813.

Almost surely, 2^{317025467533681} is an apocalyptic number.

317025467533681 is the 17805209-th square number.

317025467533681 is the 8902605-th centered octagonal number.

It is an amenable number.

317025467533681 is a deficient number, since it is larger than the sum of its proper divisors (17805210).

317025467533681 is an frugal number, since it uses more digits than its factorization.

317025467533681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35610418 (or 17805209 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 61.

The spelling of 317025467533681 in words is "three hundred seventeen trillion, twenty-five billion, four hundred sixty-seven million, five hundred thirty-three thousand, six hundred eighty-one".