444213312449 has 2 divisors, whose sum is σ = 444213312450. Its totient is φ = 444213312448.

The previous prime is 444213312419. The next prime is 444213312469. The reversal of 444213312449 is 944213312444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375453984049 + 68759328400 = 612743^2 + 262220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444213312449 is a prime.

It is not a weakly prime, because it can be changed into another prime (444213312419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222106656224 + 222106656225.

It is an arithmetic number, because the mean of its divisors is an integer number (222106656225).

Almost surely, 2^444213312449 is an apocalyptic number.

It is an amenable number.

444213312449 is a deficient number, since it is larger than the sum of its proper divisors (1).

444213312449 is an equidigital number, since it uses as much as digits as its factorization.

444213312449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 41.

The spelling of 444213312449 in words is "four hundred forty-four billion, two hundred thirteen million, three hundred twelve thousand, four hundred forty-nine".