6774895447 has 2 divisors, whose sum is σ = 6774895448. Its totient is φ = 6774895446.

The previous prime is 6774895423. The next prime is 6774895459. The reversal of 6774895447 is 7445984776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6774895447 - 2⁷ = 6774895319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6774895147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3387447723 + 3387447724.

It is an arithmetic number, because the mean of its divisors is an integer number (3387447724).

Almost surely, 2^6774895447 is an apocalyptic number.

6774895447 is a deficient number, since it is larger than the sum of its proper divisors (1).

6774895447 is an equidigital number, since it uses as much as digits as its factorization.

6774895447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47416320, while the sum is 61.

The square root of 6774895447 is about 82309.7530490768. The cubic root of 6774895447 is about 1892.2021537064.

The spelling of 6774895447 in words is "six billion, seven hundred seventy-four million, eight hundred ninety-five thousand, four hundred forty-seven".