317791567120 has 20 divisors (see below), whose sum is σ = 738865393740. Its totient is φ = 127116626816.

The previous prime is 317791567117. The next prime is 317791567133. The reversal of 317791567120 is 21765197713.

It can be written as a sum of positive squares in 2 ways, for example, as 93252058384 + 224539508736 = 305372^2 + 473856^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1986197215 + ... + 1986197374.

It is an arithmetic number, because the mean of its divisors is an integer number (36943269687).

Almost surely, 2^317791567120 is an apocalyptic number.

It is an amenable number.

317791567120 is an abundant number, since it is smaller than the sum of its proper divisors (421073826620).

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

317791567120 is a wasteful number, since it uses less digits than its factorization.

317791567120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972394602 (or 3972394596 counting only the distinct ones).

The product of its (nonzero) digits is 555660, while the sum is 49.

The spelling of 317791567120 in words is "three hundred seventeen billion, seven hundred ninety-one million, five hundred sixty-seven thousand, one hundred twenty".