844628006266 has 12 divisors (see below), whose sum is σ = 1392589151226. Its totient is φ = 383921820920.

The previous prime is 844628006149. The next prime is 844628006291. The reversal of 844628006266 is 662600826448.

It can be written as a sum of positive squares in only one way, i.e., 783039161025 + 61588845241 = 884895^2 + 248171^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1745098945 + ... + 1745099428.

Almost surely, 2^844628006266 is an apocalyptic number.

844628006266 is a deficient number, since it is larger than the sum of its proper divisors (547961144960).

844628006266 is a wasteful number, since it uses less digits than its factorization.

844628006266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490198397 (or 3490198386 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 52.

The spelling of 844628006266 in words is "eight hundred forty-four billion, six hundred twenty-eight million, six thousand, two hundred sixty-six".