317090579520 has 448 divisors, whose sum is σ = 1193879264256. Its totient is φ = 70290923520.

The previous prime is 317090579513. The next prime is 317090579573. The reversal of 317090579520 is 25975090713.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 317090579520.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14678167 + ... + 14699753.

It is an arithmetic number, because the mean of its divisors is an integer number (2664909072).

Almost surely, 2^317090579520 is an apocalyptic number.

317090579520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317090579520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596939632128).

317090579520 is an abundant number, since it is smaller than the sum of its proper divisors (876788684736).

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

317090579520 is a wasteful number, since it uses less digits than its factorization.

317090579520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21738 (or 21728 counting only the distinct ones).

The product of its (nonzero) digits is 595350, while the sum is 48.

The spelling of 317090579520 in words is "three hundred seventeen billion, ninety million, five hundred seventy-nine thousand, five hundred twenty".