4444042439989 has 2 divisors, whose sum is σ = 4444042439990. Its totient is φ = 4444042439988.

The previous prime is 4444042439959. The next prime is 4444042439999. The reversal of 4444042439989 is 9899342404444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3413884428900 + 1030158011089 = 1847670^2 + 1014967^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444042439989 - 2¹¹ = 4444042437941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4444042439989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4444042439959) 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, 2222021219994 + 2222021219995.

It is an arithmetic number, because the mean of its divisors is an integer number (2222021219995).

Almost surely, 2^{4444042439989} is an apocalyptic number.

It is an amenable number.

4444042439989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444042439989 is an equidigital number, since it uses as much as digits as its factorization.

4444042439989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 143327232, while the sum is 64.

The spelling of 4444042439989 in words is "four trillion, four hundred forty-four billion, forty-two million, four hundred thirty-nine thousand, nine hundred eighty-nine".