9776997248 has 64 divisors (see below), whose sum is σ = 20132776320. Its totient is φ = 4724490240.

The previous prime is 9776997221. The next prime is 9776997259. The reversal of 9776997248 is 8427996779.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4574036 + ... + 4576172.

It is an arithmetic number, because the mean of its divisors is an integer number (314574630).

Almost surely, 2^9776997248 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 9776997248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10066388160).

9776997248 is an abundant number, since it is smaller than the sum of its proper divisors (10355779072).

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

9776997248 is a wasteful number, since it uses less digits than its factorization.

9776997248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335 (or 3323 counting only the distinct ones).

The product of its digits is 96018048, while the sum is 68.

The square root of 9776997248 is about 98878.6996678253. The cubic root of 9776997248 is about 2138.2993190273.

The spelling of 9776997248 in words is "nine billion, seven hundred seventy-six million, nine hundred ninety-seven thousand, two hundred forty-eight".