444632622734021 has 2 divisors, whose sum is σ = 444632622734022. Its totient is φ = 444632622734020.

The previous prime is 444632622734017. The next prime is 444632622734089. The reversal of 444632622734021 is 120437226236444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389789563261921 + 54843059472100 = 19743089^2 + 7405610^2 .

It is a cyclic number.

It is not a de Polignac number, because 444632622734021 - 2² = 444632622734017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444632622736021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222316311367010 + 222316311367011.

It is an arithmetic number, because the mean of its divisors is an integer number (222316311367011).

Almost surely, 2^{444632622734021} is an apocalyptic number.

It is an amenable number.

444632622734021 is a deficient number, since it is larger than the sum of its proper divisors (1).

444632622734021 is an equidigital number, since it uses as much as digits as its factorization.

444632622734021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9289728, while the sum is 50.

The spelling of 444632622734021 in words is "four hundred forty-four trillion, six hundred thirty-two billion, six hundred twenty-two million, seven hundred thirty-four thousand, twenty-one".