12643227199 has 8 divisors (see below), whose sum is σ = 13433273280. Its totient is φ = 11899503328.

The previous prime is 12643227197. The next prime is 12643227203. The reversal of 12643227199 is 99172234621.

It is not a de Polignac number, because 12643227199 - 2¹ = 12643227197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12643227197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1281799 + ... + 1291624.

It is an arithmetic number, because the mean of its divisors is an integer number (1679159160).

Almost surely, 2^12643227199 is an apocalyptic number.

12643227199 is a deficient number, since it is larger than the sum of its proper divisors (790046081).

12643227199 is an frugal number, since it uses more digits than its factorization.

12643227199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573474 (or 2573440 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The spelling of 12643227199 in words is "twelve billion, six hundred forty-three million, two hundred twenty-seven thousand, one hundred ninety-nine".