809616008968 has 24 divisors (see below), whose sum is σ = 1643783985450. Its totient is φ = 373668926592.

The previous prime is 809616008959. The next prime is 809616009011. The reversal of 809616008968 is 869800616908.

809616008968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 377096702724 + 432519306244 = 614082^2 + 657662^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 299412853 + ... + 299415556.

Almost surely, 2^809616008968 is an apocalyptic number.

It is an amenable number.

809616008968 is an abundant number, since it is smaller than the sum of its proper divisors (834167976482).

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

809616008968 is a wasteful number, since it uses less digits than its factorization.

809616008968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598828441 (or 598828424 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 61.

The spelling of 809616008968 in words is "eight hundred nine billion, six hundred sixteen million, eight thousand, nine hundred sixty-eight".