809558897068 has 24 divisors (see below), whose sum is σ = 1484459111520. Its totient is φ = 385573774080.

The previous prime is 809558897029. The next prime is 809558897093. The reversal of 809558897068 is 860798855908.

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 7 ways as a sum of consecutive naturals, for example, 18234163 + ... + 18278506.

It is an arithmetic number, because the mean of its divisors is an integer number (61852462980).

Almost surely, 2^809558897068 is an apocalyptic number.

It is an amenable number.

809558897068 is a deficient number, since it is larger than the sum of its proper divisors (674900214452).

809558897068 is a wasteful number, since it uses less digits than its factorization.

809558897068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36512937 (or 36512935 counting only the distinct ones).

The product of its (nonzero) digits is 348364800, while the sum is 73.

The spelling of 809558897068 in words is "eight hundred nine billion, five hundred fifty-eight million, eight hundred ninety-seven thousand, sixty-eight".