44556845209 has 2 divisors, whose sum is σ = 44556845210. Its totient is φ = 44556845208.

The previous prime is 44556845191. The next prime is 44556845251. The reversal of 44556845209 is 90254865544.

44556845209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32482131984 + 12074713225 = 180228^2 + 109885^2 .

It is a cyclic number.

It is not a de Polignac number, because 44556845209 - 2¹¹ = 44556843161 is a prime.

It is not a weakly prime, because it can be changed into another prime (44556845269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22278422604 + 22278422605.

It is an arithmetic number, because the mean of its divisors is an integer number (22278422605).

Almost surely, 2^44556845209 is an apocalyptic number.

It is an amenable number.

44556845209 is a deficient number, since it is larger than the sum of its proper divisors (1).

44556845209 is an equidigital number, since it uses as much as digits as its factorization.

44556845209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912000, while the sum is 52.

The spelling of 44556845209 in words is "forty-four billion, five hundred fifty-six million, eight hundred forty-five thousand, two hundred nine".