63481790720 has 144 divisors (see below), whose sum is σ = 160740814080. Its totient is φ = 23954227200.

The previous prime is 63481790717. The next prime is 63481790789. The reversal of 63481790720 is 2709718436.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5855705 + ... + 5866535.

Almost surely, 2^63481790720 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 63481790720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80370407040).

63481790720 is an abundant number, since it is smaller than the sum of its proper divisors (97259023360).

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

63481790720 is a wasteful number, since it uses less digits than its factorization.

63481790720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112 (or 11098 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 63481790720 in words is "sixty-three billion, four hundred eighty-one million, seven hundred ninety thousand, seven hundred twenty".