9648778408 has 32 divisors (see below), whose sum is σ = 18322668000. Its totient is φ = 4763119680.

The previous prime is 9648778367. The next prime is 9648778409. The reversal of 9648778408 is 8048778469.

9648778408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9648778409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177303 + ... + 225241.

It is an arithmetic number, because the mean of its divisors is an integer number (572583375).

Almost surely, 2^9648778408 is an apocalyptic number.

It is an amenable number.

9648778408 is a deficient number, since it is larger than the sum of its proper divisors (8673889592).

9648778408 is a wasteful number, since it uses less digits than its factorization.

9648778408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48265 (or 48261 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 61.

The square root of 9648778408 is about 98228.1955855853. The cubic root of 9648778408 is about 2128.9106972487.

Adding to 9648778408 its sum of digits (61), we get a palindrome (9648778469).

The spelling of 9648778408 in words is "nine billion, six hundred forty-eight million, seven hundred seventy-eight thousand, four hundred eight".