12309744928 has 48 divisors (see below), whose sum is σ = 27472677120. Its totient is φ = 5382395136.

The previous prime is 12309744913. The next prime is 12309744971. The reversal of 12309744928 is 82944790321.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 770800 + ... + 786607.

It is an arithmetic number, because the mean of its divisors is an integer number (572347440).

Almost surely, 2^12309744928 is an apocalyptic number.

It is an amenable number.

12309744928 is an abundant number, since it is smaller than the sum of its proper divisors (15162932192).

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

12309744928 is a wasteful number, since it uses less digits than its factorization.

12309744928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557449 (or 1557441 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 12309744928 in words is "twelve billion, three hundred nine million, seven hundred forty-four thousand, nine hundred twenty-eight".