317966281893 has 40 divisors (see below), whose sum is σ = 511628764416. Its totient is φ = 195631524000.

The previous prime is 317966281889. The next prime is 317966281903. The reversal of 317966281893 is 398182669713.

It is not a de Polignac number, because 317966281893 - 2² = 317966281889 is a prime.

It is a super-2 number, since 2×317966281893² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 317966281893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317966281883) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5606388 + ... + 5662818.

Almost surely, 2^317966281893 is an apocalyptic number.

It is an amenable number.

317966281893 is a deficient number, since it is larger than the sum of its proper divisors (193662482523).

317966281893 is a wasteful number, since it uses less digits than its factorization.

317966281893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61807 (or 61798 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The spelling of 317966281893 in words is "three hundred seventeen billion, nine hundred sixty-six million, two hundred eighty-one thousand, eight hundred ninety-three".