8668751771 has 2 divisors, whose sum is σ = 8668751772. Its totient is φ = 8668751770.

The previous prime is 8668751713. The next prime is 8668751779. The reversal of 8668751771 is 1771578668.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8668751771 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (8668751779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4334375885 + 4334375886.

It is an arithmetic number, because the mean of its divisors is an integer number (4334375886).

Almost surely, 2^8668751771 is an apocalyptic number.

8668751771 is a deficient number, since it is larger than the sum of its proper divisors (1).

8668751771 is an equidigital number, since it uses as much as digits as its factorization.

8668751771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3951360, while the sum is 56.

The square root of 8668751771 is about 93106.1317583327. The cubic root of 8668751771 is about 2054.2447657027.

The spelling of 8668751771 in words is "eight billion, six hundred sixty-eight million, seven hundred fifty-one thousand, seven hundred seventy-one".