12651795126 has 96 divisors (see below), whose sum is σ = 29357777280. Its totient is φ = 3926102400.

The previous prime is 12651795119. The next prime is 12651795187. The reversal of 12651795126 is 62159715621.

It is a happy number.

12651795126 is a `hidden beast` number, since 1 + 2 + 6 + 517 + 9 + 5 + 126 = 666.

12651795126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 8262981 + ... + 8264511.

It is an arithmetic number, because the mean of its divisors is an integer number (305810180).

Almost surely, 2^12651795126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12651795126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14678888640).

12651795126 is an abundant number, since it is smaller than the sum of its proper divisors (16705982154).

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

12651795126 is a wasteful number, since it uses less digits than its factorization.

12651795126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962 (or 1959 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The spelling of 12651795126 in words is "twelve billion, six hundred fifty-one million, seven hundred ninety-five thousand, one hundred twenty-six".