63556089872 has 20 divisors (see below), whose sum is σ = 134334463056. Its totient is φ = 28889131680.

The previous prime is 63556089869. The next prime is 63556089901. The reversal of 63556089872 is 27898065536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180556898 + ... + 180557249.

Almost surely, 2^63556089872 is an apocalyptic number.

It is an amenable number.

63556089872 is an abundant number, since it is smaller than the sum of its proper divisors (70778373184).

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

63556089872 is a wasteful number, since it uses less digits than its factorization.

63556089872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361114166 (or 361114160 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 63556089872 in words is "sixty-three billion, five hundred fifty-six million, eighty-nine thousand, eight hundred seventy-two".