809231899676 has 12 divisors (see below), whose sum is σ = 1439371494120. Its totient is φ = 397982901360.

The previous prime is 809231899669. The next prime is 809231899691. The reversal of 809231899676 is 676998132908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1658261846 + ... + 1658262333.

It is an arithmetic number, because the mean of its divisors is an integer number (119947624510).

Almost surely, 2^809231899676 is an apocalyptic number.

It is an amenable number.

809231899676 is a deficient number, since it is larger than the sum of its proper divisors (630139594444).

809231899676 is a wasteful number, since it uses less digits than its factorization.

809231899676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3316524244 (or 3316524242 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 68.

The spelling of 809231899676 in words is "eight hundred nine billion, two hundred thirty-one million, eight hundred ninety-nine thousand, six hundred seventy-six".