23744339209 has 2 divisors, whose sum is σ = 23744339210. Its totient is φ = 23744339208.

The previous prime is 23744339207. The next prime is 23744339219. The reversal of 23744339209 is 90293344732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18302031225 + 5442307984 = 135285^2 + 73772^2 .

It is a cyclic number.

It is not a de Polignac number, because 23744339209 - 2¹ = 23744339207 is a prime.

Together with 23744339207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23744339207) 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, 11872169604 + 11872169605.

It is an arithmetic number, because the mean of its divisors is an integer number (11872169605).

Almost surely, 2^23744339209 is an apocalyptic number.

It is an amenable number.

23744339209 is a deficient number, since it is larger than the sum of its proper divisors (1).

23744339209 is an equidigital number, since it uses as much as digits as its factorization.

23744339209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 46.

The spelling of 23744339209 in words is "twenty-three billion, seven hundred forty-four million, three hundred thirty-nine thousand, two hundred nine".