12307823849 has 2 divisors, whose sum is σ = 12307823850. Its totient is φ = 12307823848.

The previous prime is 12307823813. The next prime is 12307823903. The reversal of 12307823849 is 94832870321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10906669225 + 1401154624 = 104435^2 + 37432^2 .

It is a cyclic number.

It is not a de Polignac number, because 12307823849 - 2¹⁶ = 12307758313 is a prime.

It is not a weakly prime, because it can be changed into another prime (12307823809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6153911924 + 6153911925.

It is an arithmetic number, because the mean of its divisors is an integer number (6153911925).

Almost surely, 2^12307823849 is an apocalyptic number.

It is an amenable number.

12307823849 is a deficient number, since it is larger than the sum of its proper divisors (1).

12307823849 is an equidigital number, since it uses as much as digits as its factorization.

12307823849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 12307823849 in words is "twelve billion, three hundred seven million, eight hundred twenty-three thousand, eight hundred forty-nine".