6766777651 has 2 divisors, whose sum is σ = 6766777652. Its totient is φ = 6766777650.

The previous prime is 6766777639. The next prime is 6766777711. The reversal of 6766777651 is 1567776676.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6766777651 - 2⁹ = 6766777139 is a prime.

It is not a weakly prime, because it can be changed into another prime (6766777051) 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, 3383388825 + 3383388826.

It is an arithmetic number, because the mean of its divisors is an integer number (3383388826).

Almost surely, 2^6766777651 is an apocalyptic number.

6766777651 is a deficient number, since it is larger than the sum of its proper divisors (1).

6766777651 is an equidigital number, since it uses as much as digits as its factorization.

6766777651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15558480, while the sum is 58.

The square root of 6766777651 is about 82260.4257890755. The cubic root of 6766777651 is about 1891.4460952866.

The spelling of 6766777651 in words is "six billion, seven hundred sixty-six million, seven hundred seventy-seven thousand, six hundred fifty-one".