317217653680 has 80 divisors (see below), whose sum is σ = 739356678144. Its totient is φ = 126573408000.

The previous prime is 317217653653. The next prime is 317217653681. The reversal of 317217653680 is 86356712713.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (317217653681) 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 15 ways as a sum of consecutive naturals, for example, 63862557 + ... + 63867523.

Almost surely, 2^317217653680 is an apocalyptic number.

It is an amenable number.

317217653680 is an abundant number, since it is smaller than the sum of its proper divisors (422139024464).

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

317217653680 is a wasteful number, since it uses less digits than its factorization.

317217653680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6794 (or 6788 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 317217653680 in words is "three hundred seventeen billion, two hundred seventeen million, six hundred fifty-three thousand, six hundred eighty".