317904158493 has 24 divisors (see below), whose sum is σ = 464409012600. Its totient is φ = 209530151424.

The previous prime is 317904158479. The next prime is 317904158497. The reversal of 317904158493 is 394851409713.

317904158493 is a `hidden beast` number, since 3 + 17 + 9 + 0 + 41 + 584 + 9 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13577609529 + 304326548964 = 116523^2 + 551658^2 .

It is not a de Polignac number, because 317904158493 - 2⁴ = 317904158477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317904158497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8935023 + ... + 8970531.

It is an arithmetic number, because the mean of its divisors is an integer number (19350375525).

Almost surely, 2^317904158493 is an apocalyptic number.

It is an amenable number.

317904158493 is a deficient number, since it is larger than the sum of its proper divisors (146504854107).

317904158493 is a wasteful number, since it uses less digits than its factorization.

317904158493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46781 (or 46778 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 317904158493 in words is "three hundred seventeen billion, nine hundred four million, one hundred fifty-eight thousand, four hundred ninety-three".