12544845072 has 20 divisors (see below), whose sum is σ = 32407516560. Its totient is φ = 4181615008.

The previous prime is 12544844999. The next prime is 12544845073. The reversal of 12544845072 is 27054844521.

12544845072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12544845073) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 130675422 + ... + 130675517.

It is an arithmetic number, because the mean of its divisors is an integer number (1620375828).

Almost surely, 2^12544845072 is an apocalyptic number.

12544845072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12544845072 is an abundant number, since it is smaller than the sum of its proper divisors (19862671488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12544845072 is a wasteful number, since it uses less digits than its factorization.

12544845072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261350950 (or 261350944 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 42.

The spelling of 12544845072 in words is "twelve billion, five hundred forty-four million, eight hundred forty-five thousand, seventy-two".