12044521644 has 48 divisors (see below), whose sum is σ = 29054758656. Its totient is φ = 3880440000.

The previous prime is 12044521637. The next prime is 12044521679. The reversal of 12044521644 is 44612544021.

12044521644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 15 ways as a sum of consecutive naturals, for example, 22782 + ... + 156869.

It is an arithmetic number, because the mean of its divisors is an integer number (605307472).

Almost surely, 2^12044521644 is an apocalyptic number.

It is an amenable number.

12044521644 is an abundant number, since it is smaller than the sum of its proper divisors (17010237012).

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

12044521644 is a wasteful number, since it uses less digits than its factorization.

12044521644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179846 (or 179844 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The spelling of 12044521644 in words is "twelve billion, forty-four million, five hundred twenty-one thousand, six hundred forty-four".