4444361681999 has 2 divisors, whose sum is σ = 4444361682000. Its totient is φ = 4444361681998.

The previous prime is 4444361681983. The next prime is 4444361682031. The reversal of 4444361681999 is 9991861634444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4444361681999 - 2⁴ = 4444361681983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4444361681099) 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, 2222180840999 + 2222180841000.

It is an arithmetic number, because the mean of its divisors is an integer number (2222180841000).

Almost surely, 2^{4444361681999} is an apocalyptic number.

4444361681999 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444361681999 is an equidigital number, since it uses as much as digits as its factorization.

4444361681999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161243136, while the sum is 68.

The spelling of 4444361681999 in words is "four trillion, four hundred forty-four billion, three hundred sixty-one million, six hundred eighty-one thousand, nine hundred ninety-nine".