10990244809 has 2 divisors, whose sum is σ = 10990244810. Its totient is φ = 10990244808.

The previous prime is 10990244761. The next prime is 10990244831. The reversal of 10990244809 is 90844209901.

10990244809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9820810000 + 1169434809 = 99100^2 + 34197^2 .

It is a cyclic number.

It is not a de Polignac number, because 10990244809 - 2¹¹ = 10990242761 is a prime.

It is not a weakly prime, because it can be changed into another prime (10990244009) 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, 5495122404 + 5495122405.

It is an arithmetic number, because the mean of its divisors is an integer number (5495122405).

Almost surely, 2^10990244809 is an apocalyptic number.

It is an amenable number.

10990244809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10990244809 is an equidigital number, since it uses as much as digits as its factorization.

10990244809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 10990244809 in words is "ten billion, nine hundred ninety million, two hundred forty-four thousand, eight hundred nine".