444481555972 has 12 divisors (see below), whose sum is σ = 777851404876. Its totient is φ = 222238297440.

The previous prime is 444481555963. The next prime is 444481556063. The reversal of 444481555972 is 279555184444.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 331379830336 + 113101725636 = 575656^2 + 336306^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 182679 + ... + 960382.

Almost surely, 2^444481555972 is an apocalyptic number.

It is an amenable number.

444481555972 is a deficient number, since it is larger than the sum of its proper divisors (333369848904).

444481555972 is a wasteful number, since it uses less digits than its factorization.

444481555972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240278 (or 1240276 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 58.

The spelling of 444481555972 in words is "four hundred forty-four billion, four hundred eighty-one million, five hundred fifty-five thousand, nine hundred seventy-two".