6244244866 has 4 divisors (see below), whose sum is σ = 9366367302. Its totient is φ = 3122122432.

The previous prime is 6244244849. The next prime is 6244244869. The reversal of 6244244866 is 6684424426.

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

It can be written as a sum of positive squares in only one way, i.e., 4042289241 + 2201955625 = 63579^2 + 46925^2 .

It is not an unprimeable number, because it can be changed into a prime (6244244869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561061215 + ... + 1561061218.

Almost surely, 2^6244244866 is an apocalyptic number.

6244244866 is a deficient number, since it is larger than the sum of its proper divisors (3122122436).

6244244866 is a wasteful number, since it uses less digits than its factorization.

6244244866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122122435.

The product of its digits is 1769472, while the sum is 46.

The square root of 6244244866 is about 79020.5344578231. The cubic root of 6244244866 is about 1841.4501864923.

The spelling of 6244244866 in words is "six billion, two hundred forty-four million, two hundred forty-four thousand, eight hundred sixty-six".