6128144857 has 2 divisors, whose sum is σ = 6128144858. Its totient is φ = 6128144856.

The previous prime is 6128144839. The next prime is 6128144899. The reversal of 6128144857 is 7584418216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4529424601 + 1598720256 = 67301^2 + 39984^2 .

It is a cyclic number.

It is not a de Polignac number, because 6128144857 - 2²⁷ = 5993927129 is a prime.

It is not a weakly prime, because it can be changed into another prime (6128144837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3064072428 + 3064072429.

It is an arithmetic number, because the mean of its divisors is an integer number (3064072429).

Almost surely, 2^6128144857 is an apocalyptic number.

It is an amenable number.

6128144857 is a deficient number, since it is larger than the sum of its proper divisors (1).

6128144857 is an equidigital number, since it uses as much as digits as its factorization.

6128144857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 430080, while the sum is 46.

The square root of 6128144857 is about 78282.4683885223. The cubic root of 6128144857 is about 1829.9659441043.

The spelling of 6128144857 in words is "six billion, one hundred twenty-eight million, one hundred forty-four thousand, eight hundred fifty-seven".