12633647613 has 4 divisors (see below), whose sum is σ = 16844863488. Its totient is φ = 8422431740.

The previous prime is 12633647581. The next prime is 12633647617. The reversal of 12633647613 is 31674633621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12633647613 - 2⁵ = 12633647581 is a prime.

It is a super-3 number, since 3×12633647613³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12633647617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105607933 + ... + 2105607938.

It is an arithmetic number, because the mean of its divisors is an integer number (4211215872).

Almost surely, 2^12633647613 is an apocalyptic number.

It is an amenable number.

12633647613 is a deficient number, since it is larger than the sum of its proper divisors (4211215875).

12633647613 is an equidigital number, since it uses as much as digits as its factorization.

12633647613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211215874.

The product of its digits is 326592, while the sum is 42.

The spelling of 12633647613 in words is "twelve billion, six hundred thirty-three million, six hundred forty-seven thousand, six hundred thirteen".