6444848789 has 4 divisors (see below), whose sum is σ = 6494046240. Its totient is φ = 6395651340.

The previous prime is 6444848783. The next prime is 6444848797. The reversal of 6444848789 is 9878484446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6444848789 - 2³² = 2149881493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444848783) 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, 24598529 + ... + 24598790.

It is an arithmetic number, because the mean of its divisors is an integer number (1623511560).

Almost surely, 2^6444848789 is an apocalyptic number.

It is an amenable number.

6444848789 is a deficient number, since it is larger than the sum of its proper divisors (49197451).

6444848789 is a wasteful number, since it uses less digits than its factorization.

6444848789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49197450.

The product of its digits is 49545216, while the sum is 62.

The square root of 6444848789 is about 80279.8155765196. The cubic root of 6444848789 is about 1860.9623097858.

The spelling of 6444848789 in words is "six billion, four hundred forty-four million, eight hundred forty-eight thousand, seven hundred eighty-nine".