6766400723 has 2 divisors, whose sum is σ = 6766400724. Its totient is φ = 6766400722.

The previous prime is 6766400699. The next prime is 6766400737. The reversal of 6766400723 is 3270046676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6766400723 - 2⁸ = 6766400467 is a prime.

It is not a weakly prime, because it can be changed into another prime (6766400423) 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, 3383200361 + 3383200362.

It is an arithmetic number, because the mean of its divisors is an integer number (3383200362).

Almost surely, 2^6766400723 is an apocalyptic number.

6766400723 is a deficient number, since it is larger than the sum of its proper divisors (1).

6766400723 is an equidigital number, since it uses as much as digits as its factorization.

6766400723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 41.

The square root of 6766400723 is about 82258.1346919562. The cubic root of 6766400723 is about 1891.4109750630.

The spelling of 6766400723 in words is "six billion, seven hundred sixty-six million, four hundred thousand, seven hundred twenty-three".