443404144401397 has 2 divisors, whose sum is σ = 443404144401398. Its totient is φ = 443404144401396.

The previous prime is 443404144401343. The next prime is 443404144401431. The reversal of 443404144401397 is 793104441404344.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 386632349894961 + 56771794506436 = 19662969^2 + 7534706^2 .

It is a cyclic number.

It is not a de Polignac number, because 443404144401397 - 2¹⁵ = 443404144368629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443404145401397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221702072200698 + 221702072200699.

It is an arithmetic number, because the mean of its divisors is an integer number (221702072200699).

Almost surely, 2^{443404144401397} is an apocalyptic number.

It is an amenable number.

443404144401397 is a deficient number, since it is larger than the sum of its proper divisors (1).

443404144401397 is an equidigital number, since it uses as much as digits as its factorization.

443404144401397 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 52.

The spelling of 443404144401397 in words is "four hundred forty-three trillion, four hundred four billion, one hundred forty-four million, four hundred one thousand, three hundred ninety-seven".