317986386432 has 320 divisors, whose sum is σ = 1029575352960. Its totient is φ = 85878374400.

The previous prime is 317986386427. The next prime is 317986386433. The reversal of 317986386432 is 234683689713.

It is a super-2 number, since 2×317986386432² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (317986386433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6344832 + ... + 6394752.

It is an arithmetic number, because the mean of its divisors is an integer number (3217422978).

Almost surely, 2^317986386432 is an apocalyptic number.

317986386432 is a gapful number since it is divisible by the number (32) 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 317986386432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514787676480).

317986386432 is an abundant number, since it is smaller than the sum of its proper divisors (711588966528).

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

317986386432 is a wasteful number, since it uses less digits than its factorization.

317986386432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49995 (or 49979 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 60.

The spelling of 317986386432 in words is "three hundred seventeen billion, nine hundred eighty-six million, three hundred eighty-six thousand, four hundred thirty-two".