316587866728 has 128 divisors (see below), whose sum is σ = 710428320000. Its totient is φ = 132154364160.

The previous prime is 316587866723. The next prime is 316587866731. The reversal of 316587866728 is 827668785613.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (316587866723) 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, 20207218 + ... + 20222878.

It is an arithmetic number, because the mean of its divisors is an integer number (5550221250).

Almost surely, 2^316587866728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 316587866728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355214160000).

316587866728 is an abundant number, since it is smaller than the sum of its proper divisors (393840453272).

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

316587866728 is a wasteful number, since it uses less digits than its factorization.

316587866728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15880 (or 15862 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 67.

The spelling of 316587866728 in words is "three hundred sixteen billion, five hundred eighty-seven million, eight hundred sixty-six thousand, seven hundred twenty-eight".