444313441993 has 2 divisors, whose sum is σ = 444313441994. Its totient is φ = 444313441992.

The previous prime is 444313441963. The next prime is 444313442033. The reversal of 444313441993 is 399144313444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329197095049 + 115116346944 = 573757^2 + 339288^2 .

It is a cyclic number.

It is not a de Polignac number, because 444313441993 - 2⁵ = 444313441961 is a prime.

It is not a weakly prime, because it can be changed into another prime (444313441963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222156720996 + 222156720997.

It is an arithmetic number, because the mean of its divisors is an integer number (222156720997).

Almost surely, 2^444313441993 is an apocalyptic number.

It is an amenable number.

444313441993 is a deficient number, since it is larger than the sum of its proper divisors (1).

444313441993 is an equidigital number, since it uses as much as digits as its factorization.

444313441993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 49.

The spelling of 444313441993 in words is "four hundred forty-four billion, three hundred thirteen million, four hundred forty-one thousand, nine hundred ninety-three".