63528308868 has 24 divisors (see below), whose sum is σ = 151848154080. Its totient is φ = 20659612480.

The previous prime is 63528308863. The next prime is 63528308869. The reversal of 63528308868 is 86880382536.

It is not an unprimeable number, because it can be changed into a prime (63528308863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64560798 + ... + 64561781.

It is an arithmetic number, because the mean of its divisors is an integer number (6327006420).

Almost surely, 2^63528308868 is an apocalyptic number.

It is an amenable number.

63528308868 is an abundant number, since it is smaller than the sum of its proper divisors (88319845212).

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

63528308868 is a wasteful number, since it uses less digits than its factorization.

63528308868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129122627 (or 129122625 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 63528308868 in words is "sixty-three billion, five hundred twenty-eight million, three hundred eight thousand, eight hundred sixty-eight".