28344053609 has 2 divisors, whose sum is σ = 28344053610. Its totient is φ = 28344053608.

The previous prime is 28344053509. The next prime is 28344053653. The reversal of 28344053609 is 90635044382.

It is an a-pointer prime, because the next prime (28344053653) can be obtained adding 28344053609 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20376706009 + 7967347600 = 142747^2 + 89260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28344053609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28344053609.

It is not a weakly prime, because it can be changed into another prime (28344053509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14172026804 + 14172026805.

It is an arithmetic number, because the mean of its divisors is an integer number (14172026805).

Almost surely, 2^28344053609 is an apocalyptic number.

It is an amenable number.

28344053609 is a deficient number, since it is larger than the sum of its proper divisors (1).

28344053609 is an equidigital number, since it uses as much as digits as its factorization.

28344053609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 28344053609 in words is "twenty-eight billion, three hundred forty-four million, fifty-three thousand, six hundred nine".