12634250817 has 16 divisors (see below), whose sum is σ = 17116178688. Its totient is φ = 8288115840.

The previous prime is 12634250807. The next prime is 12634250821. The reversal of 12634250817 is 71805243621.

12634250817 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 12634250817 - 2⁶ = 12634250753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12634250807) 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 15 ways as a sum of consecutive naturals, for example, 27463 + ... + 161315.

It is an arithmetic number, because the mean of its divisors is an integer number (1069761168).

Almost surely, 2^12634250817 is an apocalyptic number.

It is an amenable number.

12634250817 is a deficient number, since it is larger than the sum of its proper divisors (4481927871).

12634250817 is a wasteful number, since it uses less digits than its factorization.

12634250817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134360.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 12634250817 in words is "twelve billion, six hundred thirty-four million, two hundred fifty thousand, eight hundred seventeen".