12613298643 has 32 divisors (see below), whose sum is σ = 20393049600. Its totient is φ = 7641453600.

The previous prime is 12613298623. The next prime is 12613298681. The reversal of 12613298643 is 34689231621.

12613298643 is a `hidden beast` number, since 1 + 2 + 613 + 29 + 8 + 6 + 4 + 3 = 666.

It is not a de Polignac number, because 12613298643 - 2⁸ = 12613298387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12613298623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 941073 + ... + 954381.

It is an arithmetic number, because the mean of its divisors is an integer number (637282800).

Almost surely, 2^12613298643 is an apocalyptic number.

12613298643 is a deficient number, since it is larger than the sum of its proper divisors (7779750957).

12613298643 is a wasteful number, since it uses less digits than its factorization.

12613298643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16520 (or 16514 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 12613298643 in words is "twelve billion, six hundred thirteen million, two hundred ninety-eight thousand, six hundred forty-three".