444554562432 has 64 divisors (see below), whose sum is σ = 1200206284560. Its totient is φ = 145755586560.

The previous prime is 444554562427. The next prime is 444554562523. The reversal of 444554562432 is 234265455444.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9465873 + ... + 9512720.

Almost surely, 2^444554562432 is an apocalyptic number.

It is an amenable number.

444554562432 is an abundant number, since it is smaller than the sum of its proper divisors (755651722128).

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

444554562432 is a wasteful number, since it uses less digits than its factorization.

444554562432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18978671 (or 18978659 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 48.

The spelling of 444554562432 in words is "four hundred forty-four billion, five hundred fifty-four million, five hundred sixty-two thousand, four hundred thirty-two".