12647549732 has 6 divisors (see below), whose sum is σ = 22133212038. Its totient is φ = 6323774864.

The previous prime is 12647549731. The next prime is 12647549771. The reversal of 12647549732 is 23794574621.

12647549732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8610726436 + 4036823296 = 92794^2 + 63536^2 .

It is not an unprimeable number, because it can be changed into a prime (12647549731) 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 as a sum of consecutive naturals, namely, 1580943713 + ... + 1580943720.

It is an arithmetic number, because the mean of its divisors is an integer number (3688868673).

Almost surely, 2^12647549732 is an apocalyptic number.

It is an amenable number.

12647549732 is a deficient number, since it is larger than the sum of its proper divisors (9485662306).

12647549732 is a wasteful number, since it uses less digits than its factorization.

12647549732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161887437 (or 3161887435 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 50.

The spelling of 12647549732 in words is "twelve billion, six hundred forty-seven million, five hundred forty-nine thousand, seven hundred thirty-two".