4444665629 has 2 divisors, whose sum is σ = 4444665630. Its totient is φ = 4444665628.

The previous prime is 4444665619. The next prime is 4444665647. The reversal of 4444665629 is 9265664444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3693357529 + 751308100 = 60773^2 + 27410^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444665629 - 2¹⁶ = 4444600093 is a prime.

It is a super-2 number, since 2×4444665629² = 39510105107227931282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4444665619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222332814 + 2222332815.

It is an arithmetic number, because the mean of its divisors is an integer number (2222332815).

Almost surely, 2^4444665629 is an apocalyptic number.

It is an amenable number.

4444665629 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444665629 is an equidigital number, since it uses as much as digits as its factorization.

4444665629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4976640, while the sum is 50.

The square root of 4444665629 is about 66668.3255301946. The cubic root of 4444665629 is about 1644.1686568356.

The spelling of 4444665629 in words is "four billion, four hundred forty-four million, six hundred sixty-five thousand, six hundred twenty-nine".