6128668668251 has 2 divisors, whose sum is σ = 6128668668252. Its totient is φ = 6128668668250.

The previous prime is 6128668668181. The next prime is 6128668668281. The reversal of 6128668668251 is 1528668668216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6128668668251 - 2¹⁰ = 6128668667227 is a prime.

It is not a weakly prime, because it can be changed into another prime (6128668668281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3064334334125 + 3064334334126.

It is an arithmetic number, because the mean of its divisors is an integer number (3064334334126).

Almost surely, 2^{6128668668251} is an apocalyptic number.

6128668668251 is a deficient number, since it is larger than the sum of its proper divisors (1).

6128668668251 is an equidigital number, since it uses as much as digits as its factorization.

6128668668251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79626240, while the sum is 65.

The spelling of 6128668668251 in words is "six trillion, one hundred twenty-eight billion, six hundred sixty-eight million, six hundred sixty-eight thousand, two hundred fifty-one".