10444226809 has 3 divisors (see below), whose sum is σ = 10444329007. Its totient is φ = 10444124612.

The previous prime is 10444226789. The next prime is 10444226851. The reversal of 10444226809 is 90862244401.

The square root of 10444226809 is 102197.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90862244401 = 241 ⋅377021761.

It can be written as a sum of positive squares in only one way, i.e., 8325650025 + 2118576784 = 91245^2 + 46028^2 .

It is not a de Polignac number, because 10444226809 - 2⁹ = 10444226297 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10444226509) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 51099 + ... + 153295.

Almost surely, 2^10444226809 is an apocalyptic number.

10444226809 is the 102197-th square number.

10444226809 is the 51099-th centered octagonal number.

It is an amenable number.

10444226809 is a deficient number, since it is larger than the sum of its proper divisors (102198).

10444226809 is an frugal number, since it uses more digits than its factorization.

10444226809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204394 (or 102197 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 10444226809 in words is "ten billion, four hundred forty-four million, two hundred twenty-six thousand, eight hundred nine".