12636500341 has 4 divisors (see below), whose sum is σ = 12670378732. Its totient is φ = 12602621952.

The previous prime is 12636500293. The next prime is 12636500347. The reversal of 12636500341 is 14300563621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4144140625 + 8492359716 = 64375^2 + 92154^2 .

It is a cyclic number.

It is not a de Polignac number, because 12636500341 - 2²¹ = 12634403189 is a prime.

It is a super-2 number, since 2×12636500341² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12636500347) 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, 16938636 + ... + 16939381.

It is an arithmetic number, because the mean of its divisors is an integer number (3167594683).

Almost surely, 2^12636500341 is an apocalyptic number.

It is an amenable number.

12636500341 is a deficient number, since it is larger than the sum of its proper divisors (33878391).

12636500341 is an equidigital number, since it uses as much as digits as its factorization.

12636500341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33878390.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 12636500341 in words is "twelve billion, six hundred thirty-six million, five hundred thousand, three hundred forty-one".