8548961779 has 2 divisors, whose sum is σ = 8548961780. Its totient is φ = 8548961778.

The previous prime is 8548961731. The next prime is 8548961809. The reversal of 8548961779 is 9771698458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8548961779 - 2⁷ = 8548961651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8548961779.

It is not a weakly prime, because it can be changed into another prime (8548961719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4274480889 + 4274480890.

It is an arithmetic number, because the mean of its divisors is an integer number (4274480890).

Almost surely, 2^8548961779 is an apocalyptic number.

8548961779 is a deficient number, since it is larger than the sum of its proper divisors (1).

8548961779 is an equidigital number, since it uses as much as digits as its factorization.

8548961779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 64.

The square root of 8548961779 is about 92460.5958178942. The cubic root of 8548961779 is about 2044.7385823660.

The spelling of 8548961779 in words is "eight billion, five hundred forty-eight million, nine hundred sixty-one thousand, seven hundred seventy-nine".