8515681130896 has 45 divisors (see below), whose sum is σ = 16598990381251. Its totient is φ = 4232224921856.

The previous prime is 8515681130867. The next prime is 8515681130903. The reversal of 8515681130896 is 6980311865158.

The square root of 8515681130896 is 2918164.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5431864164496 + 3083816966400 = 2330636^2 + 1756080^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2019367380 + ... + 2019371596.

Almost surely, 2^{8515681130896} is an apocalyptic number.

8515681130896 is the 2918164-th square number.

It is an amenable number.

8515681130896 is a deficient number, since it is larger than the sum of its proper divisors (8083309250355).

8515681130896 is an frugal number, since it uses more digits than its factorization.

8515681130896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8788 (or 4392 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 61.

It can be divided in two parts, 851568 and 1130896, that added together give a square (1982464 = 1408²).

The spelling of 8515681130896 in words is "eight trillion, five hundred fifteen billion, six hundred eighty-one million, one hundred thirty thousand, eight hundred ninety-six".