317691143925 has 12 divisors (see below), whose sum is σ = 525249358080. Its totient is φ = 169435276720.

The previous prime is 317691143923. The next prime is 317691143951. The reversal of 317691143925 is 529341196713.

It is a happy number.

It is not a de Polignac number, because 317691143925 - 2¹ = 317691143923 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317691143923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2117940885 + ... + 2117941034.

It is an arithmetic number, because the mean of its divisors is an integer number (43770779840).

Almost surely, 2^317691143925 is an apocalyptic number.

It is an amenable number.

317691143925 is a deficient number, since it is larger than the sum of its proper divisors (207558214155).

317691143925 is a wasteful number, since it uses less digits than its factorization.

317691143925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235881932 (or 4235881927 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The spelling of 317691143925 in words is "three hundred seventeen billion, six hundred ninety-one million, one hundred forty-three thousand, nine hundred twenty-five".