444294665773 has 6 divisors (see below), whose sum is σ = 516832570446. Its totient is φ = 380823999192.

The previous prime is 444294665723. The next prime is 444294665777. The reversal of 444294665773 is 377566492444.

It can be written as a sum of positive squares in only one way, i.e., 312886965769 + 131407700004 = 559363^2 + 362502^2 .

It is a de Polignac number, because none of the positive numbers 2^k-444294665773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444294665777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4533618990 + ... + 4533619087.

It is an arithmetic number, because the mean of its divisors is an integer number (86138761741).

Almost surely, 2^444294665773 is an apocalyptic number.

It is an amenable number.

444294665773 is a deficient number, since it is larger than the sum of its proper divisors (72537904673).

444294665773 is an equidigital number, since it uses as much as digits as its factorization.

444294665773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9067238091 (or 9067238084 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 61.

The spelling of 444294665773 in words is "four hundred forty-four billion, two hundred ninety-four million, six hundred sixty-five thousand, seven hundred seventy-three".