9896662776 has 256 divisors, whose sum is σ = 33326899200. Its totient is φ = 2365171200.

The previous prime is 9896662733. The next prime is 9896662777. The reversal of 9896662776 is 6772666989.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9896662777) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11795365 + ... + 11796203.

It is an arithmetic number, because the mean of its divisors is an integer number (130183200).

Almost surely, 2^9896662776 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 9896662776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16663449600).

9896662776 is an abundant number, since it is smaller than the sum of its proper divisors (23430236424).

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

9896662776 is a wasteful number, since it uses less digits than its factorization.

9896662776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370 (or 1366 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 66.

The square root of 9896662776 is about 99481.9721155547. The cubic root of 9896662776 is about 2146.9878696908.

The spelling of 9896662776 in words is "nine billion, eight hundred ninety-six million, six hundred sixty-two thousand, seven hundred seventy-six".