6766736819 has 2 divisors, whose sum is σ = 6766736820. Its totient is φ = 6766736818.

The previous prime is 6766736807. The next prime is 6766736917. The reversal of 6766736819 is 9186376676.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6766736819 - 2²⁴ = 6749959603 is a prime.

It is a super-2 number, since 2×6766736819² = 91577454355220477522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6766738819) 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, 3383368409 + 3383368410.

It is an arithmetic number, because the mean of its divisors is an integer number (3383368410).

Almost surely, 2^6766736819 is an apocalyptic number.

6766736819 is a deficient number, since it is larger than the sum of its proper divisors (1).

6766736819 is an equidigital number, since it uses as much as digits as its factorization.

6766736819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13716864, while the sum is 59.

The square root of 6766736819 is about 82260.1776013157. The cubic root of 6766736819 is about 1891.4422908326.

The spelling of 6766736819 in words is "six billion, seven hundred sixty-six million, seven hundred thirty-six thousand, eight hundred nineteen".