63128280432 has 80 divisors (see below), whose sum is σ = 187522323200. Its totient is φ = 17925981696.

The previous prime is 63128280431. The next prime is 63128280487. The reversal of 63128280432 is 23408282136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63128280431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521557 + ... + 631092.

It is an arithmetic number, because the mean of its divisors is an integer number (2344029040).

Almost surely, 2^63128280432 is an apocalyptic number.

It is an amenable number.

63128280432 is an abundant number, since it is smaller than the sum of its proper divisors (124394042768).

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

63128280432 is a wasteful number, since it uses less digits than its factorization.

63128280432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152830 (or 1152824 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 63128280432 in words is "sixty-three billion, one hundred twenty-eight million, two hundred eighty thousand, four hundred thirty-two".