444921428629 has 2 divisors, whose sum is σ = 444921428630. Its totient is φ = 444921428628.

The previous prime is 444921428599. The next prime is 444921428711. The reversal of 444921428629 is 926824129444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443691874404 + 1229554225 = 666102^2 + 35065^2 .

It is a cyclic number.

It is not a de Polignac number, because 444921428629 - 2⁹ = 444921428117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444921428629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444921128629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222460714314 + 222460714315.

It is an arithmetic number, because the mean of its divisors is an integer number (222460714315).

Almost surely, 2^444921428629 is an apocalyptic number.

It is an amenable number.

444921428629 is a deficient number, since it is larger than the sum of its proper divisors (1).

444921428629 is an equidigital number, since it uses as much as digits as its factorization.

444921428629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7962624, while the sum is 55.

The spelling of 444921428629 in words is "four hundred forty-four billion, nine hundred twenty-one million, four hundred twenty-eight thousand, six hundred twenty-nine".