444322221403993 has 2 divisors, whose sum is σ = 444322221403994. Its totient is φ = 444322221403992.

The previous prime is 444322221403943. The next prime is 444322221404101. The reversal of 444322221403993 is 399304122223444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 421486935841609 + 22835285562384 = 20530147^2 + 4778628^2 .

It is a cyclic number.

It is not a de Polignac number, because 444322221403993 - 2³³ = 444313631469401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444322221403993.

It is not a weakly prime, because it can be changed into another prime (444322221403943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222161110701996 + 222161110701997.

It is an arithmetic number, because the mean of its divisors is an integer number (222161110701997).

Almost surely, 2^{444322221403993} is an apocalyptic number.

It is an amenable number.

444322221403993 is a deficient number, since it is larger than the sum of its proper divisors (1).

444322221403993 is an equidigital number, since it uses as much as digits as its factorization.

444322221403993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8957952, while the sum is 52.

The spelling of 444322221403993 in words is "four hundred forty-four trillion, three hundred twenty-two billion, two hundred twenty-one million, four hundred three thousand, nine hundred ninety-three".