It is a happy number.
It is an unprimeable number.
Almost surely, 29996757776 is an apocalyptic number.
9996757776 is the 57726-th octagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 9996757776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14361283200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9996757776 is a wasteful number, since it uses less digits than its factorization.
9996757776 is an evil number, because the sum of its binary digits is even.
The square root of 9996757776 is about 99983.7875657849. The cubic root of 9996757776 is about 2154.2018262016.
The spelling of 9996757776 in words is "nine billion, nine hundred ninety-six million, seven hundred fifty-seven thousand, seven hundred seventy-six".