12634770658 has 12 divisors (see below), whose sum is σ = 19415967858. Its totient is φ = 6162806240.

The previous prime is 12634770653. The next prime is 12634770667. The reversal of 12634770658 is 85607743621.

12634770658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 5118400849 + 7516369809 = 71543^2 + 86697^2 .

It is not an unprimeable number, because it can be changed into a prime (12634770653) 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 5 ways as a sum of consecutive naturals, for example, 1011660 + ... + 1024072.

Almost surely, 2^12634770658 is an apocalyptic number.

12634770658 is a deficient number, since it is larger than the sum of its proper divisors (6781197200).

12634770658 is an frugal number, since it uses more digits than its factorization.

12634770658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24869 (or 12456 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 12634770658 in words is "twelve billion, six hundred thirty-four million, seven hundred seventy thousand, six hundred fifty-eight".