6740740729 has 2 divisors, whose sum is σ = 6740740730. Its totient is φ = 6740740728.

The previous prime is 6740740693. The next prime is 6740740733. The reversal of 6740740729 is 9270470476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6177960000 + 562780729 = 78600^2 + 23723^2 .

It is a cyclic number.

It is not a de Polignac number, because 6740740729 - 2⁹ = 6740740217 is a prime.

It is not a weakly prime, because it can be changed into another prime (6740740229) 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, 3370370364 + 3370370365.

It is an arithmetic number, because the mean of its divisors is an integer number (3370370365).

Almost surely, 2^6740740729 is an apocalyptic number.

It is an amenable number.

6740740729 is a deficient number, since it is larger than the sum of its proper divisors (1).

6740740729 is an equidigital number, since it uses as much as digits as its factorization.

6740740729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 592704, while the sum is 46.

The square root of 6740740729 is about 82102.0141592154. The cubic root of 6740740729 is about 1889.0170349356.

The spelling of 6740740729 in words is "six billion, seven hundred forty million, seven hundred forty thousand, seven hundred twenty-nine".