444221432273 has 2 divisors, whose sum is σ = 444221432274. Its totient is φ = 444221432272.

The previous prime is 444221432257. The next prime is 444221432399. The reversal of 444221432273 is 372234122444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410133933889 + 34087498384 = 640417^2 + 184628^2 .

It is a cyclic number.

It is not a de Polignac number, because 444221432273 - 2⁴ = 444221432257 is a prime.

It is not a weakly prime, because it can be changed into another prime (444221432573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222110716136 + 222110716137.

It is an arithmetic number, because the mean of its divisors is an integer number (222110716137).

Almost surely, 2^444221432273 is an apocalyptic number.

It is an amenable number.

444221432273 is a deficient number, since it is larger than the sum of its proper divisors (1).

444221432273 is an equidigital number, since it uses as much as digits as its factorization.

444221432273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 38.

The spelling of 444221432273 in words is "four hundred forty-four billion, two hundred twenty-one million, four hundred thirty-two thousand, two hundred seventy-three".