12723445268 has 36 divisors (see below), whose sum is σ = 23596853280. Its totient is φ = 5999439264.

The previous prime is 12723445237. The next prime is 12723445271. The reversal of 12723445268 is 86254432721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100673 + ... + 188631.

Almost surely, 2^12723445268 is an apocalyptic number.

It is an amenable number.

12723445268 is a deficient number, since it is larger than the sum of its proper divisors (10873408012).

12723445268 is a wasteful number, since it uses less digits than its factorization.

12723445268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88064 (or 88033 counting only the distinct ones).

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

Adding to 12723445268 its reverse (86254432721), we get a palindrome (98977877989).

The spelling of 12723445268 in words is "twelve billion, seven hundred twenty-three million, four hundred forty-five thousand, two hundred sixty-eight".