4878717947 has 2 divisors, whose sum is σ = 4878717948. Its totient is φ = 4878717946.

The previous prime is 4878717931. The next prime is 4878718001. The reversal of 4878717947 is 7497178784.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4878717947 - 2⁴ = 4878717931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4878717947.

It is not a weakly prime, because it can be changed into another prime (4878713947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2439358973 + 2439358974.

It is an arithmetic number, because the mean of its divisors is an integer number (2439358974).

Almost surely, 2^4878717947 is an apocalyptic number.

4878717947 is a deficient number, since it is larger than the sum of its proper divisors (1).

4878717947 is an equidigital number, since it uses as much as digits as its factorization.

4878717947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22127616, while the sum is 62.

The square root of 4878717947 is about 69847.8199158714. The cubic root of 4878717947 is about 1696.0366664812.

The spelling of 4878717947 in words is "four billion, eight hundred seventy-eight million, seven hundred seventeen thousand, nine hundred forty-seven".