63688633688636 has 24 divisors (see below), whose sum is σ = 123648194839680. Its totient is φ = 28458711508400.

The previous prime is 63688633688621. The next prime is 63688633688657.

63688633688636 is nontrivially palindromic in base 10.

63688633688636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×63688633688636³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12266683400 + ... + 12266688591.

It is an arithmetic number, because the mean of its divisors is an integer number (5152008118320).

Almost surely, 2^{63688633688636} is an apocalyptic number.

It is an amenable number.

63688633688636 is a deficient number, since it is larger than the sum of its proper divisors (59959561151044).

63688633688636 is a wasteful number, since it uses less digits than its factorization.

63688633688636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24533372065 (or 24533372063 counting only the distinct ones).

The product of its digits is 15479341056, while the sum is 80.

The spelling of 63688633688636 in words is "sixty-three trillion, six hundred eighty-eight billion, six hundred thirty-three million, six hundred eighty-eight thousand, six hundred thirty-six".