63532645280 has 96 divisors (see below), whose sum is σ = 163152952704. Its totient is φ = 23238890496.

The previous prime is 63532645213. The next prime is 63532645291. The reversal of 63532645280 is 8254623536.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79829 + ... + 365291.

It is an arithmetic number, because the mean of its divisors is an integer number (1699509924).

Almost surely, 2^63532645280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63532645280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81576476352).

63532645280 is an abundant number, since it is smaller than the sum of its proper divisors (99620307424).

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

63532645280 is a wasteful number, since it uses less digits than its factorization.

63532645280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285598 (or 285590 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 63532645280 in words is "sixty-three billion, five hundred thirty-two million, six hundred forty-five thousand, two hundred eighty".