4568128687 has 2 divisors, whose sum is σ = 4568128688. Its totient is φ = 4568128686.

The previous prime is 4568128657. The next prime is 4568128699. The reversal of 4568128687 is 7868218654.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4568128687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4568128657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2284064343 + 2284064344.

It is an arithmetic number, because the mean of its divisors is an integer number (2284064344).

Almost surely, 2^4568128687 is an apocalyptic number.

4568128687 is a deficient number, since it is larger than the sum of its proper divisors (1).

4568128687 is an equidigital number, since it uses as much as digits as its factorization.

4568128687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5160960, while the sum is 55.

The square root of 4568128687 is about 67587.9329984281. The cubic root of 4568128687 is about 1659.2536305730.

The spelling of 4568128687 in words is "four billion, five hundred sixty-eight million, one hundred twenty-eight thousand, six hundred eighty-seven".