39444209029 has 2 divisors, whose sum is σ = 39444209030. Its totient is φ = 39444209028.

The previous prime is 39444208963. The next prime is 39444209069. The reversal of 39444209029 is 92090244493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38799150625 + 645058404 = 196975^2 + 25398^2 .

It is a cyclic number.

It is not a de Polignac number, because 39444209029 - 2⁷ = 39444208901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39444209029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39444209069) 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, 19722104514 + 19722104515.

It is an arithmetic number, because the mean of its divisors is an integer number (19722104515).

Almost surely, 2^39444209029 is an apocalyptic number.

It is an amenable number.

39444209029 is a deficient number, since it is larger than the sum of its proper divisors (1).

39444209029 is an equidigital number, since it uses as much as digits as its factorization.

39444209029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 39444209029 in words is "thirty-nine billion, four hundred forty-four million, two hundred nine thousand, twenty-nine".