6444004817 has 4 divisors (see below), whose sum is σ = 6459760740. Its totient is φ = 6428248896.

The previous prime is 6444004807. The next prime is 6444004823. The reversal of 6444004817 is 7184004446.

6444004817 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4734678481 + 1709326336 = 68809^2 + 41344^2 .

It is a cyclic number.

It is not a de Polignac number, because 6444004817 - 2⁸ = 6444004561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6444004807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7877348 + ... + 7878165.

It is an arithmetic number, because the mean of its divisors is an integer number (1614940185).

Almost surely, 2^6444004817 is an apocalyptic number.

It is an amenable number.

6444004817 is a deficient number, since it is larger than the sum of its proper divisors (15755923).

6444004817 is a wasteful number, since it uses less digits than its factorization.

6444004817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15755922.

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 6444004817 is about 80274.5589648427. The cubic root of 6444004817 is about 1860.8810734012.

The spelling of 6444004817 in words is "six billion, four hundred forty-four million, four thousand, eight hundred seventeen".