6444554446 has 16 divisors (see below), whose sum is σ = 11165966640. Its totient is φ = 2757028480.

The previous prime is 6444554423. The next prime is 6444554471.

6444554446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6444554396 and 6444554405.

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, 8615341 + ... + 8616088.

It is an arithmetic number, because the mean of its divisors is an integer number (697872915).

Almost surely, 2^6444554446 is an apocalyptic number.

6444554446 is a deficient number, since it is larger than the sum of its proper divisors (4721412194).

6444554446 is a wasteful number, since it uses less digits than its factorization.

6444554446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17231459.

The product of its digits is 3686400, while the sum is 46.

The square root of 6444554446 is about 80277.9823239224. The cubic root of 6444554446 is about 1860.9339786547.

The spelling of 6444554446 in words is "six billion, four hundred forty-four million, five hundred fifty-four thousand, four hundred forty-six".