2788668871 has 2 divisors, whose sum is σ = 2788668872. Its totient is φ = 2788668870.

The previous prime is 2788668859. The next prime is 2788668881. The reversal of 2788668871 is 1788668872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2788668871 - 2⁹ = 2788668359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2788668851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394334435 + 1394334436.

It is an arithmetic number, because the mean of its divisors is an integer number (1394334436).

Almost surely, 2^2788668871 is an apocalyptic number.

2788668871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2788668871 is an equidigital number, since it uses as much as digits as its factorization.

2788668871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14450688, while the sum is 61.

The square root of 2788668871 is about 52807.8485738626. The cubic root of 2788668871 is about 1407.5558937407. Note that the first 3 decimals are identical.

Subtracting from 2788668871 its reverse (1788668872), we obtain a palindrome (999999999).

The spelling of 2788668871 in words is "two billion, seven hundred eighty-eight million, six hundred sixty-eight thousand, eight hundred seventy-one".