8128443863 has 2 divisors, whose sum is σ = 8128443864. Its totient is φ = 8128443862.

The previous prime is 8128443839. The next prime is 8128443881. The reversal of 8128443863 is 3683448218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8128443863 - 2¹⁴ = 8128427479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8128448863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4064221931 + 4064221932.

It is an arithmetic number, because the mean of its divisors is an integer number (4064221932).

Almost surely, 2^8128443863 is an apocalyptic number.

8128443863 is a deficient number, since it is larger than the sum of its proper divisors (1).

8128443863 is an equidigital number, since it uses as much as digits as its factorization.

8128443863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736, while the sum is 47.

The square root of 8128443863 is about 90157.8829775855. The cubic root of 8128443863 is about 2010.6468766845.

The spelling of 8128443863 in words is "eight billion, one hundred twenty-eight million, four hundred forty-three thousand, eight hundred sixty-three".