63545721232 has 20 divisors (see below), whose sum is σ = 140708382976. Its totient is φ = 27233880480.

The previous prime is 63545721229. The next prime is 63545721259. The reversal of 63545721232 is 23212754536.

63545721232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283686144 + ... + 283686367.

Almost surely, 2^63545721232 is an apocalyptic number.

It is an amenable number.

63545721232 is an abundant number, since it is smaller than the sum of its proper divisors (77162661744).

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

63545721232 is a wasteful number, since it uses less digits than its factorization.

63545721232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567372526 (or 567372520 counting only the distinct ones).

The product of its digits is 302400, while the sum is 40.

The spelling of 63545721232 in words is "sixty-three billion, five hundred forty-five million, seven hundred twenty-one thousand, two hundred thirty-two".