317687834405 has 4 divisors (see below), whose sum is σ = 381225401292. Its totient is φ = 254150267520.

The previous prime is 317687834389. The next prime is 317687834449. The reversal of 317687834405 is 504438786713.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222744353764 + 94943480641 = 471958^2 + 308129^2 .

It is not a de Polignac number, because 317687834405 - 2⁴ = 317687834389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31768783436 + ... + 31768783445.

It is an arithmetic number, because the mean of its divisors is an integer number (95306350323).

Almost surely, 2^317687834405 is an apocalyptic number.

It is an amenable number.

317687834405 is a deficient number, since it is larger than the sum of its proper divisors (63537566887).

317687834405 is an equidigital number, since it uses as much as digits as its factorization.

317687834405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63537566886.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 317687834405 in words is "three hundred seventeen billion, six hundred eighty-seven million, eight hundred thirty-four thousand, four hundred five".