12285991382 has 24 divisors (see below), whose sum is σ = 21581704800. Its totient is φ = 5230080240.

The previous prime is 12285991369. The next prime is 12285991387. The reversal of 12285991382 is 28319958221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12285991382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12285991387) 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 11 ways as a sum of consecutive naturals, for example, 406094 + ... + 435297.

It is an arithmetic number, because the mean of its divisors is an integer number (899237700).

Almost surely, 2^12285991382 is an apocalyptic number.

12285991382 is a deficient number, since it is larger than the sum of its proper divisors (9295713418).

12285991382 is a wasteful number, since it uses less digits than its factorization.

12285991382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841556 (or 841549 counting only the distinct ones).

The product of its digits is 622080, while the sum is 50.

The spelling of 12285991382 in words is "twelve billion, two hundred eighty-five million, nine hundred ninety-one thousand, three hundred eighty-two".