9648778499 has 2 divisors, whose sum is σ = 9648778500. Its totient is φ = 9648778498.

The previous prime is 9648778463. The next prime is 9648778511. The reversal of 9648778499 is 9948778469.

9648778499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9648778499 - 2²⁸ = 9380343043 is a prime.

It is not a weakly prime, because it can be changed into another 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 as a sum of consecutive naturals, namely, 4824389249 + 4824389250.

It is an arithmetic number, because the mean of its divisors is an integer number (4824389250).

Almost surely, 2^9648778499 is an apocalyptic number.

9648778499 is a deficient number, since it is larger than the sum of its proper divisors (1).

9648778499 is an equidigital number, since it uses as much as digits as its factorization.

9648778499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 219469824, while the sum is 71.

The square root of 9648778499 is about 98228.1960487924. The cubic root of 9648778499 is about 2128.9107039415.

The spelling of 9648778499 in words is "nine billion, six hundred forty-eight million, seven hundred seventy-eight thousand, four hundred ninety-nine".