12766324772 has 24 divisors (see below), whose sum is σ = 22425089400. Its totient is φ = 6359198976.

The previous prime is 12766324729. The next prime is 12766324801. The reversal of 12766324772 is 27742366721.

12766324772 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 4 ways, for example, as 9567969856 + 3198354916 = 97816^2 + 56554^2 .

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 7 ways as a sum of consecutive naturals, for example, 1351538 + ... + 1360950.

It is an arithmetic number, because the mean of its divisors is an integer number (934378725).

Almost surely, 2^12766324772 is an apocalyptic number.

It is an amenable number.

12766324772 is a deficient number, since it is larger than the sum of its proper divisors (9658764628).

12766324772 is a wasteful number, since it uses less digits than its factorization.

12766324772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655 (or 10653 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 47.

The spelling of 12766324772 in words is "twelve billion, seven hundred sixty-six million, three hundred twenty-four thousand, seven hundred seventy-two".