12723445269 has 24 divisors (see below), whose sum is σ = 19463887872. Its totient is φ = 7981491840.

The previous prime is 12723445237. The next prime is 12723445271. The reversal of 12723445269 is 96254432721.

12723445269 is a `hidden beast` number, since 12 + 72 + 3 + 44 + 526 + 9 = 666.

12723445269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12723445269 - 2⁵ = 12723445237 is a prime.

It is a super-2 number, since 2×12723445269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12723445219) 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 23 ways as a sum of consecutive naturals, for example, 997804 + ... + 1010474.

It is an arithmetic number, because the mean of its divisors is an integer number (810995328).

Almost surely, 2^12723445269 is an apocalyptic number.

It is an amenable number.

12723445269 is a deficient number, since it is larger than the sum of its proper divisors (6740442603).

12723445269 is a wasteful number, since it uses less digits than its factorization.

12723445269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19257 (or 19254 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 12723445269 in words is "twelve billion, seven hundred twenty-three million, four hundred forty-five thousand, two hundred sixty-nine".