444431331312 has 20 divisors (see below), whose sum is σ = 1148114272680. Its totient is φ = 148143777088.

The previous prime is 444431331277. The next prime is 444431331397. The reversal of 444431331312 is 213133134444.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4629492987 + ... + 4629493082.

It is an arithmetic number, because the mean of its divisors is an integer number (57405713634).

Almost surely, 2^444431331312 is an apocalyptic number.

It is an amenable number.

444431331312 is an abundant number, since it is smaller than the sum of its proper divisors (703682941368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444431331312 is a wasteful number, since it uses less digits than its factorization.

444431331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9258986080 (or 9258986074 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

Adding to 444431331312 its reverse (213133134444), we get a palindrome (657564465756).

The spelling of 444431331312 in words is "four hundred forty-four billion, four hundred thirty-one million, three hundred thirty-one thousand, three hundred twelve".