2668677287 has 2 divisors, whose sum is σ = 2668677288. Its totient is φ = 2668677286.

The previous prime is 2668677259. The next prime is 2668677293. The reversal of 2668677287 is 7827768662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2668677287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2668677587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334338643 + 1334338644.

It is an arithmetic number, because the mean of its divisors is an integer number (1334338644).

Almost surely, 2^2668677287 is an apocalyptic number.

2668677287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2668677287 is an equidigital number, since it uses as much as digits as its factorization.

2668677287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18966528, while the sum is 59.

The square root of 2668677287 is about 51659.2420288955. The cubic root of 2668677287 is about 1387.0709827140.

The spelling of 2668677287 in words is "two billion, six hundred sixty-eight million, six hundred seventy-seven thousand, two hundred eighty-seven".