2668211129 has 2 divisors, whose sum is σ = 2668211130. Its totient is φ = 2668211128.

The previous prime is 2668211123. The next prime is 2668211141. The reversal of 2668211129 is 9211128662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1829529529 + 838681600 = 42773^2 + 28960^2 .

It is a cyclic number.

It is not a de Polignac number, because 2668211129 - 2²⁴ = 2651433913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2668211092 and 2668211101.

It is not a weakly prime, because it can be changed into another prime (2668211123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334105564 + 1334105565.

It is an arithmetic number, because the mean of its divisors is an integer number (1334105565).

Almost surely, 2^2668211129 is an apocalyptic number.

It is an amenable number.

2668211129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2668211129 is an equidigital number, since it uses as much as digits as its factorization.

2668211129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 38.

The square root of 2668211129 is about 51654.7299770311. The cubic root of 2668211129 is about 1386.9902146258.

The spelling of 2668211129 in words is "two billion, six hundred sixty-eight million, two hundred eleven thousand, one hundred twenty-nine".