12738611307126 has 32 divisors (see below), whose sum is σ = 25819892121600. Its totient is φ = 4189176239040.

The previous prime is 12738611307089. The next prime is 12738611307139. The reversal of 12738611307126 is 62170311683721.

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, 9899895 + ... + 11112386.

It is an arithmetic number, because the mean of its divisors is an integer number (806871628800).

Almost surely, 2^{12738611307126} is an apocalyptic number.

12738611307126 is an abundant number, since it is smaller than the sum of its proper divisors (13081280814474).

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

12738611307126 is a wasteful number, since it uses less digits than its factorization.

12738611307126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21013644.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 12738611307126 in words is "twelve trillion, seven hundred thirty-eight billion, six hundred eleven million, three hundred seven thousand, one hundred twenty-six".