8696531312920 has 256 divisors, whose sum is σ = 21854352199680. Its totient is φ = 3088057996800.

The previous prime is 8696531312839. The next prime is 8696531312947. The reversal of 8696531312920 is 292131356968.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

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, 1563278059 + ... + 1563283621.

It is an arithmetic number, because the mean of its divisors is an integer number (85368563280).

Almost surely, 2^{8696531312920} 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 8696531312920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10927176099840).

8696531312920 is an abundant number, since it is smaller than the sum of its proper divisors (13157820886760).

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

8696531312920 is a wasteful number, since it uses less digits than its factorization.

8696531312920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126 (or 6122 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 8696531312920 in words is "eight trillion, six hundred ninety-six billion, five hundred thirty-one million, three hundred twelve thousand, nine hundred twenty".