444843082213 has 2 divisors, whose sum is σ = 444843082214. Its totient is φ = 444843082212.

The previous prime is 444843082147. The next prime is 444843082283. The reversal of 444843082213 is 312280348444.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236703656484 + 208139425729 = 486522^2 + 456223^2 .

It is a cyclic number.

It is not a de Polignac number, because 444843082213 - 2²⁵ = 444809527781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444843082213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444843082283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222421541106 + 222421541107.

It is an arithmetic number, because the mean of its divisors is an integer number (222421541107).

Almost surely, 2^444843082213 is an apocalyptic number.

It is an amenable number.

444843082213 is a deficient number, since it is larger than the sum of its proper divisors (1).

444843082213 is an equidigital number, since it uses as much as digits as its factorization.

444843082213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 589824, while the sum is 43.

The spelling of 444843082213 in words is "four hundred forty-four billion, eight hundred forty-three million, eighty-two thousand, two hundred thirteen".