444444468888856 has 8 divisors (see below), whose sum is σ = 833333379166620. Its totient is φ = 222222234444424.

The previous prime is 444444468888851. The next prime is 444444468888857. The reversal of 444444468888856 is 658888864444444.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444444468888851) by changing a digit.

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 as a sum of consecutive naturals, namely, 27777779305546 + ... + 27777779305561.

Almost surely, 2^{444444468888856} is an apocalyptic number.

It is an amenable number.

444444468888856 is a deficient number, since it is larger than the sum of its proper divisors (388888910277764).

444444468888856 is a wasteful number, since it uses less digits than its factorization.

444444468888856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55555558611113 (or 55555558611109 counting only the distinct ones).

The product of its digits is 96636764160, while the sum is 85.

The spelling of 444444468888856 in words is "four hundred forty-four trillion, four hundred forty-four billion, four hundred sixty-eight million, eight hundred eighty-eight thousand, eight hundred fifty-six".