12308005644 has 48 divisors (see below), whose sum is σ = 33172384896. Its totient is φ = 3510304000.

The previous prime is 12308005639. The next prime is 12308005693. The reversal of 12308005644 is 44650080321.

12308005644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 2740182 + ... + 2744669.

It is an arithmetic number, because the mean of its divisors is an integer number (691091352).

Almost surely, 2^12308005644 is an apocalyptic number.

It is an amenable number.

12308005644 is an abundant number, since it is smaller than the sum of its proper divisors (20864379252).

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

12308005644 is a wasteful number, since it uses less digits than its factorization.

12308005644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484886 (or 5484884 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 12308005644 its reverse (44650080321), we get a palindrome (56958085965).

The spelling of 12308005644 in words is "twelve billion, three hundred eight million, five thousand, six hundred forty-four".