12284891999 has 4 divisors (see below), whose sum is σ = 12468248664. Its totient is φ = 12101535336.

The previous prime is 12284891989. The next prime is 12284892013. The reversal of 12284891999 is 99919848221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12284891999 - 2³² = 7989924703 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 (12284891929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91678232 + ... + 91678365.

It is an arithmetic number, because the mean of its divisors is an integer number (3117062166).

Almost surely, 2^12284891999 is an apocalyptic number.

12284891999 is a deficient number, since it is larger than the sum of its proper divisors (183356665).

12284891999 is an equidigital number, since it uses as much as digits as its factorization.

12284891999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183356664.

The product of its digits is 6718464, while the sum is 62.

The spelling of 12284891999 in words is "twelve billion, two hundred eighty-four million, eight hundred ninety-one thousand, nine hundred ninety-nine".