63278319720 has 1152 divisors, whose sum is σ = 265492684800. Its totient is φ = 11975040000.

The previous prime is 63278319719. The next prime is 63278319761. The reversal of 63278319720 is 2791387236.

It is a self number, because there is not a number n which added to its sum of digits gives 63278319720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 419061645 + ... + 419061795.

It is an arithmetic number, because the mean of its divisors is an integer number (230462400).

Almost surely, 2^63278319720 is an apocalyptic number.

63278319720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63278319720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132746342400).

63278319720 is an abundant number, since it is smaller than the sum of its proper divisors (202214365080).

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

63278319720 is a wasteful number, since it uses less digits than its factorization.

63278319720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 63278319720 in words is "sixty-three billion, two hundred seventy-eight million, three hundred nineteen thousand, seven hundred twenty".