809603193385 has 16 divisors (see below), whose sum is σ = 1116730953216. Its totient is φ = 551947474368.

The previous prime is 809603193367. The next prime is 809603193401. The reversal of 809603193385 is 583391306908.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 809603193385 - 2¹⁷ = 809603062313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66848049 + ... + 66860158.

It is an arithmetic number, because the mean of its divisors is an integer number (69795684576).

Almost surely, 2^809603193385 is an apocalyptic number.

It is an amenable number.

809603193385 is a deficient number, since it is larger than the sum of its proper divisors (307127759831).

809603193385 is a wasteful number, since it uses less digits than its factorization.

809603193385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133708392.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 809603193385 in words is "eight hundred nine billion, six hundred three million, one hundred ninety-three thousand, three hundred eighty-five".