6767811797 has 2 divisors, whose sum is σ = 6767811798. Its totient is φ = 6767811796.

The previous prime is 6767811769. The next prime is 6767811811. The reversal of 6767811797 is 7971187676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5617652401 + 1150159396 = 74951^2 + 33914^2 .

It is a cyclic number.

It is not a de Polignac number, because 6767811797 - 2¹⁶ = 6767746261 is a prime.

It is a super-2 number, since 2×6767811797² = 91606553039224738418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6767813797) 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, 3383905898 + 3383905899.

It is an arithmetic number, because the mean of its divisors is an integer number (3383905899).

Almost surely, 2^6767811797 is an apocalyptic number.

It is an amenable number.

6767811797 is a deficient number, since it is larger than the sum of its proper divisors (1).

6767811797 is an equidigital number, since it uses as much as digits as its factorization.

6767811797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6223392, while the sum is 59.

The square root of 6767811797 is about 82266.7113539857. The cubic root of 6767811797 is about 1891.5424450254.

The spelling of 6767811797 in words is "six billion, seven hundred sixty-seven million, eight hundred eleven thousand, seven hundred ninety-seven".