444687387822 has 24 divisors (see below), whose sum is σ = 964056498600. Its totient is φ = 148141874160.

The previous prime is 444687387791. The next prime is 444687387839. The reversal of 444687387822 is 228783786444.

It is a happy number.

444687387822 is a `hidden beast` number, since 4 + 4 + 468 + 73 + 87 + 8 + 22 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 444687387822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7239829 + ... + 7300992.

It is an arithmetic number, because the mean of its divisors is an integer number (40169020775).

Almost surely, 2^444687387822 is an apocalyptic number.

444687387822 is an abundant number, since it is smaller than the sum of its proper divisors (519369110778).

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

444687387822 is a wasteful number, since it uses less digits than its factorization.

444687387822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14542528 (or 14542525 counting only the distinct ones).

The product of its digits is 115605504, while the sum is 63.

The spelling of 444687387822 in words is "four hundred forty-four billion, six hundred eighty-seven million, three hundred eighty-seven thousand, eight hundred twenty-two".