444332223197 has 2 divisors, whose sum is σ = 444332223198. Its totient is φ = 444332223196.

The previous prime is 444332223109. The next prime is 444332223239. The reversal of 444332223197 is 791322233444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394125306436 + 50206916761 = 627794^2 + 224069^2 .

It is a cyclic number.

It is not a de Polignac number, because 444332223197 - 2²⁰ = 444331174621 is a prime.

It is a super-2 number, since 2×444332223197² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444332226197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222166111598 + 222166111599.

It is an arithmetic number, because the mean of its divisors is an integer number (222166111599).

Almost surely, 2^444332223197 is an apocalyptic number.

It is an amenable number.

444332223197 is a deficient number, since it is larger than the sum of its proper divisors (1).

444332223197 is an equidigital number, since it uses as much as digits as its factorization.

444332223197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 44.

The spelling of 444332223197 in words is "four hundred forty-four billion, three hundred thirty-two million, two hundred twenty-three thousand, one hundred ninety-seven".