2688166427 has 2 divisors, whose sum is σ = 2688166428. Its totient is φ = 2688166426.

The previous prime is 2688166367. The next prime is 2688166433. The reversal of 2688166427 is 7246618862.

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-2688166427 is a prime.

It is not a weakly prime, because it can be changed into another prime (2688166127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344083213 + 1344083214.

It is an arithmetic number, because the mean of its divisors is an integer number (1344083214).

Almost surely, 2^2688166427 is an apocalyptic number.

2688166427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2688166427 is an equidigital number, since it uses as much as digits as its factorization.

2688166427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548288, while the sum is 50.

The square root of 2688166427 is about 51847.5305776466. The cubic root of 2688166427 is about 1390.4393530313.

The spelling of 2688166427 in words is "two billion, six hundred eighty-eight million, one hundred sixty-six thousand, four hundred twenty-seven".