2688894067 has 2 divisors, whose sum is σ = 2688894068. Its totient is φ = 2688894066.

The previous prime is 2688894059. The next prime is 2688894071. The reversal of 2688894067 is 7604988862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2688894067 - 2³ = 2688894059 is a prime.

It is a super-3 number, since 3×2688894067³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2688894367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344447033 + 1344447034.

It is an arithmetic number, because the mean of its divisors is an integer number (1344447034).

Almost surely, 2^2688894067 is an apocalyptic number.

2688894067 is a deficient number, since it is larger than the sum of its proper divisors (1).

2688894067 is an equidigital number, since it uses as much as digits as its factorization.

2688894067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9289728, while the sum is 58.

The square root of 2688894067 is about 51854.5472162278. The cubic root of 2688894067 is about 1390.5647976476.

The spelling of 2688894067 in words is "two billion, six hundred eighty-eight million, eight hundred ninety-four thousand, sixty-seven".