444373749889 has 2 divisors, whose sum is σ = 444373749890. Its totient is φ = 444373749888.

The previous prime is 444373749887. The next prime is 444373749931. The reversal of 444373749889 is 988947373444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443056640625 + 1317109264 = 665625^2 + 36292^2 .

It is a cyclic number.

It is not a de Polignac number, because 444373749889 - 2¹ = 444373749887 is a prime.

Together with 444373749887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (444373749887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222186874944 + 222186874945.

It is an arithmetic number, because the mean of its divisors is an integer number (222186874945).

Almost surely, 2^444373749889 is an apocalyptic number.

It is an amenable number.

444373749889 is a deficient number, since it is larger than the sum of its proper divisors (1).

444373749889 is an equidigital number, since it uses as much as digits as its factorization.

444373749889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 585252864, while the sum is 70.

The spelling of 444373749889 in words is "four hundred forty-four billion, three hundred seventy-three million, seven hundred forty-nine thousand, eight hundred eighty-nine".