12743422658 has 6 divisors (see below), whose sum is σ = 19115373459. Its totient is φ = 6371631506.

The previous prime is 12743422651. The next prime is 12743422669. The reversal of 12743422658 is 85622434721.

12743422658 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., 6371711329 + 6371711329 = 79823^2 + 79823^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=79823.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12743422651) 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 in 2 ways as a sum of consecutive naturals, for example, 119735 + ... + 199557.

Almost surely, 2^12743422658 is an apocalyptic number.

12743422658 is a deficient number, since it is larger than the sum of its proper divisors (6371950801).

12743422658 is an frugal number, since it uses more digits than its factorization.

12743422658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159648 (or 79825 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The spelling of 12743422658 in words is "twelve billion, seven hundred forty-three million, four hundred twenty-two thousand, six hundred fifty-eight".