12046637249 has 2 divisors, whose sum is σ = 12046637250. Its totient is φ = 12046637248.

The previous prime is 12046637243. The next prime is 12046637303. The reversal of 12046637249 is 94273664021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8366395024 + 3680242225 = 91468^2 + 60665^2 .

It is an emirp because it is prime and its reverse (94273664021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12046637249 - 2⁴ = 12046637233 is a prime.

It is not a weakly prime, because it can be changed into another prime (12046637243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6023318624 + 6023318625.

It is an arithmetic number, because the mean of its divisors is an integer number (6023318625).

Almost surely, 2^12046637249 is an apocalyptic number.

It is an amenable number.

12046637249 is a deficient number, since it is larger than the sum of its proper divisors (1).

12046637249 is an equidigital number, since it uses as much as digits as its factorization.

12046637249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 12046637249 in words is "twelve billion, forty-six million, six hundred thirty-seven thousand, two hundred forty-nine".