13444022989 has 2 divisors, whose sum is σ = 13444022990. Its totient is φ = 13444022988.

The previous prime is 13444022903. The next prime is 13444023013. The reversal of 13444022989 is 98922044431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6990632100 + 6453390889 = 83610^2 + 80333^2 .

It is a cyclic number.

It is not a de Polignac number, because 13444022989 - 2⁹ = 13444022477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13444022089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722011494 + 6722011495.

It is an arithmetic number, because the mean of its divisors is an integer number (6722011495).

Almost surely, 2^13444022989 is an apocalyptic number.

It is an amenable number.

13444022989 is a deficient number, since it is larger than the sum of its proper divisors (1).

13444022989 is an equidigital number, since it uses as much as digits as its factorization.

13444022989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 13444022989 in words is "thirteen billion, four hundred forty-four million, twenty-two thousand, nine hundred eighty-nine".