12850809409 has 8 divisors (see below), whose sum is σ = 13298778368. Its totient is φ = 12404929680.

The previous prime is 12850809397. The next prime is 12850809443. The reversal of 12850809409 is 90490805821.

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 12850809409 - 2⁷ = 12850809281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12850809479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509787 + ... + 534400.

It is an arithmetic number, because the mean of its divisors is an integer number (1662347296).

Almost surely, 2^12850809409 is an apocalyptic number.

It is an amenable number.

12850809409 is a deficient number, since it is larger than the sum of its proper divisors (447968959).

12850809409 is a wasteful number, since it uses less digits than its factorization.

12850809409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044615.

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 12850809409 in words is "twelve billion, eight hundred fifty million, eight hundred nine thousand, four hundred nine".