444887336664 has 96 divisors (see below), whose sum is σ = 1238655600000. Its totient is φ = 144149331456.

The previous prime is 444887336659. The next prime is 444887336671. The reversal of 444887336664 is 466633788444.

It is a happy number.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 2714937 + ... + 2874135.

It is an arithmetic number, because the mean of its divisors is an integer number (12902662500).

Almost surely, 2^444887336664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444887336664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619327800000).

444887336664 is an abundant number, since it is smaller than the sum of its proper divisors (793768263336).

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

444887336664 is a wasteful number, since it uses less digits than its factorization.

444887336664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160297 (or 160290 counting only the distinct ones).

The product of its digits is 222953472, while the sum is 63.

The spelling of 444887336664 in words is "four hundred forty-four billion, eight hundred eighty-seven million, three hundred thirty-six thousand, six hundred sixty-four".