12089845309 has 2 divisors, whose sum is σ = 12089845310. Its totient is φ = 12089845308.

The previous prime is 12089845303. The next prime is 12089845337. The reversal of 12089845309 is 90354898021.

12089845309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12081307225 + 8538084 = 109915^2 + 2922^2 .

It is a cyclic number.

It is not a de Polignac number, because 12089845309 - 2¹¹ = 12089843261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12089845303) 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 as a sum of consecutive naturals, namely, 6044922654 + 6044922655.

It is an arithmetic number, because the mean of its divisors is an integer number (6044922655).

Almost surely, 2^12089845309 is an apocalyptic number.

It is an amenable number.

12089845309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12089845309 is an equidigital number, since it uses as much as digits as its factorization.

12089845309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 12089845309 in words is "twelve billion, eighty-nine million, eight hundred forty-five thousand, three hundred nine".