317513091289 has 27 divisors (see below), whose sum is σ = 342928880181. Its totient is φ = 293935272120.

The previous prime is 317513091277. The next prime is 317513091319. The reversal of 317513091289 is 982190315713.

The square root of 317513091289 is 563483.

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

It is not a de Polignac number, because 317513091289 - 2²¹ = 317510994137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317513091209) 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, 503190004 + ... + 503190634.

Almost surely, 2^317513091289 is an apocalyptic number.

317513091289 is the 563483-rd square number.

317513091289 is the 281742-nd centered octagonal number.

It is an amenable number.

317513091289 is a deficient number, since it is larger than the sum of its proper divisors (25415788892).

317513091289 is an frugal number, since it uses more digits than its factorization.

317513091289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

Multiplying 317513091289 by its sum of digits (49), we get a square (15558141473161 = 3944381²).

The spelling of 317513091289 in words is "three hundred seventeen billion, five hundred thirteen million, ninety-one thousand, two hundred eighty-nine".