12613134436 has 12 divisors (see below), whose sum is σ = 25226268928. Its totient is φ = 5405629032.

The previous prime is 12613134431. The next prime is 12613134481. The reversal of 12613134436 is 63443131621.

12613134436 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12613134431) 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, 225234516 + ... + 225234571.

Almost surely, 2^12613134436 is an apocalyptic number.

It is an amenable number.

12613134436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12613134436 is a wasteful number, since it uses less digits than its factorization.

12613134436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450469098 (or 450469096 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The spelling of 12613134436 in words is "twelve billion, six hundred thirteen million, one hundred thirty-four thousand, four hundred thirty-six".