12613636501 has 4 divisors (see below), whose sum is σ = 12625871904. Its totient is φ = 12601401100.

The previous prime is 12613636447. The next prime is 12613636513. The reversal of 12613636501 is 10563631621.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10563631621 = 401 ⋅26343221.

It is a cyclic number.

It is not a de Polignac number, because 12613636501 - 2²⁷ = 12479418773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12613631501) 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, 6116155 + ... + 6118216.

It is an arithmetic number, because the mean of its divisors is an integer number (3156467976).

Almost surely, 2^12613636501 is an apocalyptic number.

It is an amenable number.

12613636501 is a deficient number, since it is larger than the sum of its proper divisors (12235403).

12613636501 is a wasteful number, since it uses less digits than its factorization.

12613636501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12235402.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 12613636501 in words is "twelve billion, six hundred thirteen million, six hundred thirty-six thousand, five hundred one".