8816779423 has 2 divisors, whose sum is σ = 8816779424. Its totient is φ = 8816779422.

The previous prime is 8816779369. The next prime is 8816779463. The reversal of 8816779423 is 3249776188.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8816779423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8816779463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4408389711 + 4408389712.

It is an arithmetic number, because the mean of its divisors is an integer number (4408389712).

Almost surely, 2^8816779423 is an apocalyptic number.

8816779423 is a deficient number, since it is larger than the sum of its proper divisors (1).

8816779423 is an equidigital number, since it uses as much as digits as its factorization.

8816779423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 55.

The square root of 8816779423 is about 93897.7072297295. The cubic root of 8816779423 is about 2065.8715996524.

The spelling of 8816779423 in words is "eight billion, eight hundred sixteen million, seven hundred seventy-nine thousand, four hundred twenty-three".