12444544163 has 2 divisors, whose sum is σ = 12444544164. Its totient is φ = 12444544162.

The previous prime is 12444544139. The next prime is 12444544237. The reversal of 12444544163 is 36144544421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12444544163 - 2²⁰ = 12443495587 is a prime.

It is not a weakly prime, because it can be changed into another prime (12444549163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222272081 + 6222272082.

It is an arithmetic number, because the mean of its divisors is an integer number (6222272082).

Almost surely, 2^12444544163 is an apocalyptic number.

12444544163 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444544163 is an equidigital number, since it uses as much as digits as its factorization.

12444544163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 38.

The spelling of 12444544163 in words is "twelve billion, four hundred forty-four million, five hundred forty-four thousand, one hundred sixty-three".