12444032009 has 2 divisors, whose sum is σ = 12444032010. Its totient is φ = 12444032008.

The previous prime is 12444031991. The next prime is 12444032071. The reversal of 12444032009 is 90023044421.

12444032009 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., 11234940025 + 1209091984 = 105995^2 + 34772^2 .

It is an emirp because it is prime and its reverse (90023044421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12444032009 - 2¹⁶ = 12443966473 is a prime.

It is a super-3 number, since 3×12444032009³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12444032609) 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, 6222016004 + 6222016005.

It is an arithmetic number, because the mean of its divisors is an integer number (6222016005).

Almost surely, 2^12444032009 is an apocalyptic number.

It is an amenable number.

12444032009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444032009 is an equidigital number, since it uses as much as digits as its factorization.

12444032009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 12444032009 in words is "twelve billion, four hundred forty-four million, thirty-two thousand, nine".