317972621634 has 16 divisors (see below), whose sum is σ = 635969083872. Its totient is φ = 105986900448.

The previous prime is 317972621623. The next prime is 317972621653. The reversal of 317972621634 is 436126279713.

It is a super-2 number, since 2×317972621634² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817579 + ... + 1142094.

It is an arithmetic number, because the mean of its divisors is an integer number (39748067742).

Almost surely, 2^317972621634 is an apocalyptic number.

317972621634 is an abundant number, since it is smaller than the sum of its proper divisors (317996462238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317972621634 is a wasteful number, since it uses less digits than its factorization.

317972621634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986721.

The product of its digits is 2286144, while the sum is 51.

The spelling of 317972621634 in words is "three hundred seventeen billion, nine hundred seventy-two million, six hundred twenty-one thousand, six hundred thirty-four".