6740443406777 has 2 divisors, whose sum is σ = 6740443406778. Its totient is φ = 6740443406776.

The previous prime is 6740443406759. The next prime is 6740443406783. The reversal of 6740443406777 is 7776043440476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4787098947136 + 1953344459641 = 2187944^2 + 1397621^2 .

It is a cyclic number.

It is not a de Polignac number, because 6740443406777 - 2⁶ = 6740443406713 is a prime.

It is not a weakly prime, because it can be changed into another prime (6740443406747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3370221703388 + 3370221703389.

It is an arithmetic number, because the mean of its divisors is an integer number (3370221703389).

Almost surely, 2^{6740443406777} is an apocalyptic number.

It is an amenable number.

6740443406777 is a deficient number, since it is larger than the sum of its proper divisors (1).

6740443406777 is an equidigital number, since it uses as much as digits as its factorization.

6740443406777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66382848, while the sum is 59.

The spelling of 6740443406777 in words is "six trillion, seven hundred forty billion, four hundred forty-three million, four hundred six thousand, seven hundred seventy-seven".