444874463221 has 8 divisors (see below), whose sum is σ = 446230076600. Its totient is φ = 443519312832.

The previous prime is 444874463179. The next prime is 444874463249. The reversal of 444874463221 is 122364478444.

It can be written as a sum of positive squares in 4 ways, for example, as 302515400196 + 142359063025 = 550014^2 + 377305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444874463221 - 2⁷ = 444874463093 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 (444874463251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1860151 + ... + 2085643.

It is an arithmetic number, because the mean of its divisors is an integer number (55778759575).

Almost surely, 2^444874463221 is an apocalyptic number.

It is an amenable number.

444874463221 is a deficient number, since it is larger than the sum of its proper divisors (1355613379).

444874463221 is a wasteful number, since it uses less digits than its factorization.

444874463221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231495.

The product of its digits is 4128768, while the sum is 49.

The spelling of 444874463221 in words is "four hundred forty-four billion, eight hundred seventy-four million, four hundred sixty-three thousand, two hundred twenty-one".