6740704457 has 2 divisors, whose sum is σ = 6740704458. Its totient is φ = 6740704456.

The previous prime is 6740704447. The next prime is 6740704471. The reversal of 6740704457 is 7544070476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3476753296 + 3263951161 = 58964^2 + 57131^2 .

It is a cyclic number.

It is not a de Polignac number, because 6740704457 - 2¹² = 6740700361 is a prime.

It is not a weakly prime, because it can be changed into another prime (6740704417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3370352228 + 3370352229.

It is an arithmetic number, because the mean of its divisors is an integer number (3370352229).

Almost surely, 2^6740704457 is an apocalyptic number.

It is an amenable number.

6740704457 is a deficient number, since it is larger than the sum of its proper divisors (1).

6740704457 is an equidigital number, since it uses as much as digits as its factorization.

6740704457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658560, while the sum is 44.

The square root of 6740704457 is about 82101.7932629976. The cubic root of 6740704457 is about 1889.0136466557.

The spelling of 6740704457 in words is "six billion, seven hundred forty million, seven hundred four thousand, four hundred fifty-seven".