9779200648 has 32 divisors (see below), whose sum is σ = 21084010560. Its totient is φ = 4165369920.

The previous prime is 9779200621. The next prime is 9779200661. The reversal of 9779200648 is 8460029779.

It is a junction number, because it is equal to n+sod(n) for n = 9779200595 and 9779200604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526543 + ... + 544798.

It is an arithmetic number, because the mean of its divisors is an integer number (658875330).

Almost surely, 2^9779200648 is an apocalyptic number.

It is an amenable number.

9779200648 is an abundant number, since it is smaller than the sum of its proper divisors (11304809912).

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

9779200648 is a wasteful number, since it uses less digits than its factorization.

9779200648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071517 (or 1071513 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 9779200648 is about 98889.8409746926. The cubic root of 9779200648 is about 2138.4599400818.

The spelling of 9779200648 in words is "nine billion, seven hundred seventy-nine million, two hundred thousand, six hundred forty-eight".