808809689696 has 12 divisors (see below), whose sum is σ = 1592344076652. Its totient is φ = 404404844832.

The previous prime is 808809689689. The next prime is 808809689717. The reversal of 808809689696 is 696986908808.

It is a super-2 number, since 2×808809689696² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12637651370 + ... + 12637651433.

It is an arithmetic number, because the mean of its divisors is an integer number (132695339721).

Almost surely, 2^808809689696 is an apocalyptic number.

It is an amenable number.

808809689696 is a deficient number, since it is larger than the sum of its proper divisors (783534386956).

808809689696 is a wasteful number, since it uses less digits than its factorization.

808809689696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25275302813 (or 25275302805 counting only the distinct ones).

The product of its (nonzero) digits is 644972544, while the sum is 77.

The spelling of 808809689696 in words is "eight hundred eight billion, eight hundred nine million, six hundred eighty-nine thousand, six hundred ninety-six".