5128188817 has 2 divisors, whose sum is σ = 5128188818. Its totient is φ = 5128188816.

The previous prime is 5128188799. The next prime is 5128188827. The reversal of 5128188817 is 7188818215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5046539521 + 81649296 = 71039^2 + 9036^2 .

It is a cyclic number.

It is not a de Polignac number, because 5128188817 - 2¹¹ = 5128186769 is a prime.

It is not a weakly prime, because it can be changed into another prime (5128188827) 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, 2564094408 + 2564094409.

It is an arithmetic number, because the mean of its divisors is an integer number (2564094409).

Almost surely, 2^5128188817 is an apocalyptic number.

It is an amenable number.

5128188817 is a deficient number, since it is larger than the sum of its proper divisors (1).

5128188817 is an equidigital number, since it uses as much as digits as its factorization.

5128188817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 286720, while the sum is 49.

The square root of 5128188817 is about 71611.3735170608. The cubic root of 5128188817 is about 1724.4661308905.

The spelling of 5128188817 in words is "five billion, one hundred twenty-eight million, one hundred eighty-eight thousand, eight hundred seventeen".