444425967989 has 2 divisors, whose sum is σ = 444425967990. Its totient is φ = 444425967988.

The previous prime is 444425967959. The next prime is 444425968073. The reversal of 444425967989 is 989769524444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333410391889 + 111015576100 = 577417^2 + 333190^2 .

It is a cyclic number.

It is not a de Polignac number, because 444425967989 - 2³² = 440131000693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444425967959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222212983994 + 222212983995.

It is an arithmetic number, because the mean of its divisors is an integer number (222212983995).

Almost surely, 2^444425967989 is an apocalyptic number.

It is an amenable number.

444425967989 is a deficient number, since it is larger than the sum of its proper divisors (1).

444425967989 is an equidigital number, since it uses as much as digits as its factorization.

444425967989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 627056640, while the sum is 71.

The spelling of 444425967989 in words is "four hundred forty-four billion, four hundred twenty-five million, nine hundred sixty-seven thousand, nine hundred eighty-nine".