12247143688 has 16 divisors (see below), whose sum is σ = 24729809580. Its totient is φ = 5652527808.

The previous prime is 12247143677. The next prime is 12247143719. The reversal of 12247143688 is 88634174221.

12247143688 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 2 ways, for example, as 12218649444 + 28494244 = 110538^2 + 5338^2 .

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 3 ways as a sum of consecutive naturals, for example, 58880395 + ... + 58880602.

Almost surely, 2^12247143688 is an apocalyptic number.

It is an amenable number.

12247143688 is an abundant number, since it is smaller than the sum of its proper divisors (12482665892).

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

12247143688 is a wasteful number, since it uses less digits than its factorization.

12247143688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117761016 (or 117761012 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The spelling of 12247143688 in words is "twelve billion, two hundred forty-seven million, one hundred forty-three thousand, six hundred eighty-eight".