12444029989 has 2 divisors, whose sum is σ = 12444029990. Its totient is φ = 12444029988.

The previous prime is 12444029987. The next prime is 12444030077. The reversal of 12444029989 is 98992044421.

12444029989 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., 9832308964 + 2611721025 = 99158^2 + 51105^2 .

It is a cyclic number.

It is not a de Polignac number, because 12444029989 - 2¹ = 12444029987 is a prime.

Together with 12444029987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12444029987) 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, 6222014994 + 6222014995.

It is an arithmetic number, because the mean of its divisors is an integer number (6222014995).

Almost surely, 2^12444029989 is an apocalyptic number.

It is an amenable number.

12444029989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444029989 is an equidigital number, since it uses as much as digits as its factorization.

12444029989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 12444029989 in words is "twelve billion, four hundred forty-four million, twenty-nine thousand, nine hundred eighty-nine".