8128188811 has 2 divisors, whose sum is σ = 8128188812. Its totient is φ = 8128188810.

The previous prime is 8128188781. The next prime is 8128188829. The reversal of 8128188811 is 1188818218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8128188811 - 2⁵ = 8128188779 is a prime.

It is not a weakly prime, because it can be changed into another prime (8128188851) 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, 4064094405 + 4064094406.

It is an arithmetic number, because the mean of its divisors is an integer number (4064094406).

Almost surely, 2^8128188811 is an apocalyptic number.

8128188811 is a deficient number, since it is larger than the sum of its proper divisors (1).

8128188811 is an equidigital number, since it uses as much as digits as its factorization.

8128188811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65536, while the sum is 46.

The square root of 8128188811 is about 90156.4684922829. The cubic root of 8128188811 is about 2010.6258466292.

The spelling of 8128188811 in words is "eight billion, one hundred twenty-eight million, one hundred eighty-eight thousand, eight hundred eleven".