809307873669 has 8 divisors (see below), whose sum is σ = 1079087674752. Its totient is φ = 539533327520.

The previous prime is 809307873629. The next prime is 809307873797. The reversal of 809307873669 is 966378703908.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 809307873669 - 2¹⁹ = 809307349381 is a prime.

It is a super-2 number, since 2×809307873669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809307873629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939117 + ... + 1581314.

It is an arithmetic number, because the mean of its divisors is an integer number (134885959344).

Almost surely, 2^809307873669 is an apocalyptic number.

It is an amenable number.

809307873669 is a deficient number, since it is larger than the sum of its proper divisors (269779801083).

809307873669 is a wasteful number, since it uses less digits than its factorization.

809307873669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627467.

The product of its (nonzero) digits is 82301184, while the sum is 66.

The spelling of 809307873669 in words is "eight hundred nine billion, three hundred seven million, eight hundred seventy-three thousand, six hundred sixty-nine".