63681708480 has 224 divisors, whose sum is σ = 217949458944. Its totient is φ = 15660601344.

The previous prime is 63681708451. The next prime is 63681708499. The reversal of 63681708480 is 8480718636.

63681708480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19254987 + ... + 19258293.

It is an arithmetic number, because the mean of its divisors is an integer number (972988656).

Almost surely, 2^63681708480 is an apocalyptic number.

63681708480 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 63681708480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108974729472).

63681708480 is an abundant number, since it is smaller than the sum of its proper divisors (154267750464).

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

63681708480 is a wasteful number, since it uses less digits than its factorization.

63681708480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883 (or 4873 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 63681708480 in words is "sixty-three billion, six hundred eighty-one million, seven hundred eight thousand, four hundred eighty".