63668708500 has 48 divisors (see below), whose sum is σ = 139155674112. Its totient is φ = 25448580000.

The previous prime is 63668708479. The next prime is 63668708507. The reversal of 63668708500 is 580786636.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63668708507) 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 15 ways as a sum of consecutive naturals, for example, 636925 + ... + 730075.

It is an arithmetic number, because the mean of its divisors is an integer number (2899076544).

Almost surely, 2^63668708500 is an apocalyptic number.

It is an amenable number.

63668708500 is an abundant number, since it is smaller than the sum of its proper divisors (75486965612).

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

63668708500 is a wasteful number, since it uses less digits than its factorization.

63668708500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94537 (or 94525 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 63668708500 in words is "sixty-three billion, six hundred sixty-eight million, seven hundred eight thousand, five hundred".