13444144447 has 2 divisors, whose sum is σ = 13444144448. Its totient is φ = 13444144446.

The previous prime is 13444144381. The next prime is 13444144451. The reversal of 13444144447 is 74444144431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13444144447 - 2¹⁵ = 13444111679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13444144477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722072223 + 6722072224.

It is an arithmetic number, because the mean of its divisors is an integer number (6722072224).

Almost surely, 2^13444144447 is an apocalyptic number.

13444144447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13444144447 is an equidigital number, since it uses as much as digits as its factorization.

13444144447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 344064, while the sum is 40.

Adding to 13444144447 its reverse (74444144431), we get a palindrome (87888288878).

The spelling of 13444144447 in words is "thirteen billion, four hundred forty-four million, one hundred forty-four thousand, four hundred forty-seven".