63986996652 has 24 divisors (see below), whose sum is σ = 149307206832. Its totient is φ = 21328396800.

The previous prime is 63986996537. The next prime is 63986996663. The reversal of 63986996652 is 25669968936.

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, 637752 + ... + 731232.

It is an arithmetic number, because the mean of its divisors is an integer number (6221133618).

Almost surely, 2^63986996652 is an apocalyptic number.

It is an amenable number.

63986996652 is an abundant number, since it is smaller than the sum of its proper divisors (85320210180).

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

63986996652 is a wasteful number, since it uses less digits than its factorization.

63986996652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150529 (or 150527 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 69.

The spelling of 63986996652 in words is "sixty-three billion, nine hundred eighty-six million, nine hundred ninety-six thousand, six hundred fifty-two".