12726278744 has 64 divisors (see below), whose sum is σ = 25874640000. Its totient is φ = 5846151168.

The previous prime is 12726278737. The next prime is 12726278779. The reversal of 12726278744 is 44787262721.

It is a junction number, because it is equal to n+sod(n) for n = 12726278692 and 12726278701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 949562 + ... + 962870.

It is an arithmetic number, because the mean of its divisors is an integer number (404291250).

Almost surely, 2^12726278744 is an apocalyptic number.

It is an amenable number.

12726278744 is an abundant number, since it is smaller than the sum of its proper divisors (13148361256).

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

12726278744 is a wasteful number, since it uses less digits than its factorization.

12726278744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13500 (or 13496 counting only the distinct ones).

The product of its digits is 2107392, while the sum is 50.

The spelling of 12726278744 in words is "twelve billion, seven hundred twenty-six million, two hundred seventy-eight thousand, seven hundred forty-four".