6740406737 has 2 divisors, whose sum is σ = 6740406738. Its totient is φ = 6740406736.

The previous prime is 6740406709. The next prime is 6740406773. The reversal of 6740406737 is 7376040476.

Together with next prime (6740406773) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4245304336 + 2495102401 = 65156^2 + 49951^2 .

It is a cyclic number.

It is not a de Polignac number, because 6740406737 - 2¹⁰ = 6740405713 is a prime.

It is not a weakly prime, because it can be changed into another prime (6740406137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3370203368 + 3370203369.

It is an arithmetic number, because the mean of its divisors is an integer number (3370203369).

Almost surely, 2^6740406737 is an apocalyptic number.

It is an amenable number.

6740406737 is a deficient number, since it is larger than the sum of its proper divisors (1).

6740406737 is an equidigital number, since it uses as much as digits as its factorization.

6740406737 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 44.

The square root of 6740406737 is about 82099.9801278904. The cubic root of 6740406737 is about 1888.9858352488.

The spelling of 6740406737 in words is "six billion, seven hundred forty million, four hundred six thousand, seven hundred thirty-seven".