6775669987 has 2 divisors, whose sum is σ = 6775669988. Its totient is φ = 6775669986.

The previous prime is 6775669961. The next prime is 6775670017. The reversal of 6775669987 is 7899665776.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6775669987 is a prime.

It is not a weakly prime, because it can be changed into another prime (6775666987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3387834993 + 3387834994.

It is an arithmetic number, because the mean of its divisors is an integer number (3387834994).

Almost surely, 2^6775669987 is an apocalyptic number.

6775669987 is a deficient number, since it is larger than the sum of its proper divisors (1).

6775669987 is an equidigital number, since it uses as much as digits as its factorization.

6775669987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240045120, while the sum is 70.

The square root of 6775669987 is about 82314.4579463414. The cubic root of 6775669987 is about 1892.2742596363.

The spelling of 6775669987 in words is "six billion, seven hundred seventy-five million, six hundred sixty-nine thousand, nine hundred eighty-seven".