63675657636 has 24 divisors (see below), whose sum is σ = 148638226464. Its totient is φ = 21216406080.

The previous prime is 63675657613. The next prime is 63675657667.

63675657636 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 63675657636.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071505 + ... + 1129368.

It is an arithmetic number, because the mean of its divisors is an integer number (6193259436).

Almost surely, 2^63675657636 is an apocalyptic number.

It is an amenable number.

63675657636 is an abundant number, since it is smaller than the sum of its proper divisors (84962568828).

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

63675657636 is a wasteful number, since it uses less digits than its factorization.

63675657636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203291 (or 2203289 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 60.

The spelling of 63675657636 in words is "sixty-three billion, six hundred seventy-five million, six hundred fifty-seven thousand, six hundred thirty-six".