9963438080 has 144 divisors (see below), whose sum is σ = 24989567904. Its totient is φ = 3806330880.

The previous prime is 9963438071. The next prime is 9963438083. The reversal of 9963438080 is 808343699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9963438083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15072950 + ... + 15073610.

It is an arithmetic number, because the mean of its divisors is an integer number (173538666).

Almost surely, 2^9963438080 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 9963438080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12494783952).

9963438080 is an abundant number, since it is smaller than the sum of its proper divisors (15026129824).

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

9963438080 is an frugal number, since it uses more digits than its factorization.

9963438080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 9963438080 is about 99817.0229970820. The cubic root of 9963438080 is about 2151.8058078986.

The spelling of 9963438080 in words is "nine billion, nine hundred sixty-three million, four hundred thirty-eight thousand, eighty".