12144421984 has 12 divisors (see below), whose sum is σ = 23909330844. Its totient is φ = 6072210976.

The previous prime is 12144421973. The next prime is 12144422011. The reversal of 12144421984 is 48912444121.

12144421984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189756562 + ... + 189756625.

It is an arithmetic number, because the mean of its divisors is an integer number (1992444237).

Almost surely, 2^12144421984 is an apocalyptic number.

It is an amenable number.

12144421984 is a deficient number, since it is larger than the sum of its proper divisors (11764908860).

12144421984 is an equidigital number, since it uses as much as digits as its factorization.

12144421984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379513197 (or 379513189 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The spelling of 12144421984 in words is "twelve billion, one hundred forty-four million, four hundred twenty-one thousand, nine hundred eighty-four".