12636435104 has 24 divisors (see below), whose sum is σ = 26341393428. Its totient is φ = 5946557440.

The previous prime is 12636435079. The next prime is 12636435131. The reversal of 12636435104 is 40153463621.

It can be written as a sum of positive squares in 2 ways, for example, as 11248723600 + 1387711504 = 106060^2 + 37252^2 .

It is a super-3 number, since 3×12636435104³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11613827 + ... + 11614914.

Almost surely, 2^12636435104 is an apocalyptic number.

It is an amenable number.

12636435104 is an abundant number, since it is smaller than the sum of its proper divisors (13704958324).

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

12636435104 is a wasteful number, since it uses less digits than its factorization.

12636435104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23228768 (or 23228760 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 12636435104 its reverse (40153463621), we get a palindrome (52789898725).

The spelling of 12636435104 in words is "twelve billion, six hundred thirty-six million, four hundred thirty-five thousand, one hundred four".