317872086718 has 4 divisors (see below), whose sum is σ = 476808130080. Its totient is φ = 158936043358.

The previous prime is 317872086677. The next prime is 317872086769. The reversal of 317872086718 is 817680278713.

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

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 79468021678 + ... + 79468021681.

It is an arithmetic number, because the mean of its divisors is an integer number (119202032520).

Almost surely, 2^317872086718 is an apocalyptic number.

317872086718 is a deficient number, since it is larger than the sum of its proper divisors (158936043362).

317872086718 is a wasteful number, since it uses less digits than its factorization.

317872086718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158936043361.

The product of its (nonzero) digits is 6322176, while the sum is 58.

The spelling of 317872086718 in words is "three hundred seventeen billion, eight hundred seventy-two million, eighty-six thousand, seven hundred eighteen".