9479878777 has 2 divisors, whose sum is σ = 9479878778. Its totient is φ = 9479878776.

The previous prime is 9479878757. The next prime is 9479878853. The reversal of 9479878777 is 7778789749.

9479878777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5612407056 + 3867471721 = 74916^2 + 62189^2 .

It is a cyclic number.

It is not a de Polignac number, because 9479878777 - 2²⁷ = 9345661049 is a prime.

It is not a weakly prime, because it can be changed into another prime (9479878717) 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, 4739939388 + 4739939389.

It is an arithmetic number, because the mean of its divisors is an integer number (4739939389).

Almost surely, 2^9479878777 is an apocalyptic number.

It is an amenable number.

9479878777 is a deficient number, since it is larger than the sum of its proper divisors (1).

9479878777 is an equidigital number, since it uses as much as digits as its factorization.

9479878777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 348509952, while the sum is 73.

The square root of 9479878777 is about 97364.6690386200. The cubic root of 9479878777 is about 2116.4154729197.

The spelling of 9479878777 in words is "nine billion, four hundred seventy-nine million, eight hundred seventy-eight thousand, seven hundred seventy-seven".