13808604636 has 36 divisors (see below), whose sum is σ = 34957950664. Its totient is φ = 4595896800.

The previous prime is 13808604631. The next prime is 13808604703. The reversal of 13808604636 is 63640680831.

13808604636 is a `hidden beast` number, since 1 + 3 + 8 + 0 + 8 + 6 + 0 + 4 + 636 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 13808604591 and 13808604600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13808604631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266350 + ... + 313941.

Almost surely, 2^13808604636 is an apocalyptic number.

It is an amenable number.

13808604636 is an abundant number, since it is smaller than the sum of its proper divisors (21149346028).

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

13808604636 is a wasteful number, since it uses less digits than its factorization.

13808604636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580962 (or 580957 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 13808604636 in words is "thirteen billion, eight hundred eight million, six hundred four thousand, six hundred thirty-six".