1444409446993 has 2 divisors, whose sum is σ = 1444409446994. Its totient is φ = 1444409446992.

The previous prime is 1444409446873. The next prime is 1444409447057. The reversal of 1444409446993 is 3996449044441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1093463393344 + 350946053649 = 1045688^2 + 592407^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444409446993 - 2²¹ = 1444407349841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1444409446393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722204723496 + 722204723497.

It is an arithmetic number, because the mean of its divisors is an integer number (722204723497).

Almost surely, 2^{1444409446993} is an apocalyptic number.

It is an amenable number.

1444409446993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444409446993 is an equidigital number, since it uses as much as digits as its factorization.

1444409446993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53747712, while the sum is 61.

The spelling of 1444409446993 in words is "one trillion, four hundred forty-four billion, four hundred nine million, four hundred forty-six thousand, nine hundred ninety-three".