317428571712 has 112 divisors (see below), whose sum is σ = 960637184640. Its totient is φ = 90618888192.

The previous prime is 317428571711. The next prime is 317428571729. The reversal of 317428571712 is 217175824713.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×317428571712² (a number of 24 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (317428571711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1538614 + ... + 1732682.

It is an arithmetic number, because the mean of its divisors is an integer number (8577117720).

Almost surely, 2^317428571712 is an apocalyptic number.

317428571712 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 317428571712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480318592320).

317428571712 is an abundant number, since it is smaller than the sum of its proper divisors (643208612928).

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

317428571712 is a wasteful number, since it uses less digits than its factorization.

317428571712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195308 (or 195298 counting only the distinct ones).

The product of its digits is 658560, while the sum is 48.

The spelling of 317428571712 in words is "three hundred seventeen billion, four hundred twenty-eight million, five hundred seventy-one thousand, seven hundred twelve".