317762143893 has 6 divisors (see below), whose sum is σ = 458989763414. Its totient is φ = 211841429256.

The previous prime is 317762143879. The next prime is 317762143939. The reversal of 317762143893 is 398341267713.

317762143893 is a `hidden beast` number, since 3 + 1 + 7 + 7 + 621 + 4 + 3 + 8 + 9 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 252268121169 + 65494022724 = 502263^2 + 255918^2 .

It is not a de Polignac number, because 317762143893 - 2⁴ = 317762143877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317762143843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17653452430 + ... + 17653452447.

Almost surely, 2^317762143893 is an apocalyptic number.

It is an amenable number.

317762143893 is a deficient number, since it is larger than the sum of its proper divisors (141227619521).

317762143893 is a wasteful number, since it uses less digits than its factorization.

317762143893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35306904883 (or 35306904880 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The spelling of 317762143893 in words is "three hundred seventeen billion, seven hundred sixty-two million, one hundred forty-three thousand, eight hundred ninety-three".