317018163072 has 128 divisors (see below), whose sum is σ = 908490915360. Its totient is φ = 97368072192.

The previous prime is 317018163047. The next prime is 317018163083. The reversal of 317018163072 is 270361810713.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 317018163072.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2723538 + ... + 2837550.

Almost surely, 2^317018163072 is an apocalyptic number.

317018163072 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 317018163072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454245457680).

317018163072 is an abundant number, since it is smaller than the sum of its proper divisors (591472752288).

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

317018163072 is a wasteful number, since it uses less digits than its factorization.

317018163072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114600 (or 114588 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

Adding to 317018163072 its reverse (270361810713), we get a palindrome (587379973785).

The spelling of 317018163072 in words is "three hundred seventeen billion, eighteen million, one hundred sixty-three thousand, seventy-two".