63947144800 has 432 divisors, whose sum is σ = 206469285120. Its totient is φ = 18878745600.

The previous prime is 63947144797. The next prime is 63947144837. The reversal of 63947144800 is 844174936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12871917 + ... + 12876883.

It is an arithmetic number, because the mean of its divisors is an integer number (477938160).

Almost surely, 2^63947144800 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 63947144800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103234642560).

63947144800 is an abundant number, since it is smaller than the sum of its proper divisors (142522140320).

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

63947144800 is a wasteful number, since it uses less digits than its factorization.

63947144800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035 (or 5011 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 63947144800 in words is "sixty-three billion, nine hundred forty-seven million, one hundred forty-four thousand, eight hundred".