6810742877 has 2 divisors, whose sum is σ = 6810742878. Its totient is φ = 6810742876.

The previous prime is 6810742849. The next prime is 6810742879. The reversal of 6810742877 is 7782470186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4384293796 + 2426449081 = 66214^2 + 49259^2 .

It is a cyclic number.

It is not a de Polignac number, because 6810742877 - 2²⁶ = 6743634013 is a prime.

Together with 6810742879, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6810742879) 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, 3405371438 + 3405371439.

It is an arithmetic number, because the mean of its divisors is an integer number (3405371439).

Almost surely, 2^6810742877 is an apocalyptic number.

It is an amenable number.

6810742877 is a deficient number, since it is larger than the sum of its proper divisors (1).

6810742877 is an equidigital number, since it uses as much as digits as its factorization.

6810742877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1053696, while the sum is 50.

The square root of 6810742877 is about 82527.2250654292. The cubic root of 6810742877 is about 1895.5336343575.

The spelling of 6810742877 in words is "six billion, eight hundred ten million, seven hundred forty-two thousand, eight hundred seventy-seven".