444213312445 has 48 divisors (see below), whose sum is σ = 627314547888. Its totient is φ = 301060730880.

The previous prime is 444213312419. The next prime is 444213312449. The reversal of 444213312445 is 544213312444.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 24240621636 + 419972690809 = 155694^2 + 648053^2 .

It is not a de Polignac number, because 444213312445 - 2⁷ = 444213312317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444213312449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18358255 + ... + 18382435.

It is an arithmetic number, because the mean of its divisors is an integer number (13069053081).

Almost surely, 2^444213312445 is an apocalyptic number.

It is an amenable number.

444213312445 is a deficient number, since it is larger than the sum of its proper divisors (183101235443).

444213312445 is a wasteful number, since it uses less digits than its factorization.

444213312445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25070 (or 25063 counting only the distinct ones).

The product of its digits is 184320, while the sum is 37.

Adding to 444213312445 its reverse (544213312444), we get a palindrome (988426624889).

Subtracting 444213312445 from its reverse (544213312444), we obtain a palindrome (99999999999).

The spelling of 444213312445 in words is "four hundred forty-four billion, two hundred thirteen million, three hundred twelve thousand, four hundred forty-five".