63320578280 has 32 divisors (see below), whose sum is σ = 142490361600. Its totient is φ = 25324842816.

The previous prime is 63320578273. The next prime is 63320578289. The reversal of 63320578280 is 8287502336.

It is not an unprimeable number, because it can be changed into a prime (63320578289) 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, 208349 + ... + 412371.

It is an arithmetic number, because the mean of its divisors is an integer number (4452823800).

Almost surely, 2^63320578280 is an apocalyptic number.

It is an amenable number.

63320578280 is an abundant number, since it is smaller than the sum of its proper divisors (79169783320).

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

63320578280 is a wasteful number, since it uses less digits than its factorization.

63320578280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211793 (or 211789 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 63320578280 in words is "sixty-three billion, three hundred twenty million, five hundred seventy-eight thousand, two hundred eighty".