6740040699641 has 2 divisors, whose sum is σ = 6740040699642. Its totient is φ = 6740040699640.

The previous prime is 6740040699571. The next prime is 6740040699659. The reversal of 6740040699641 is 1469960400476.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5797520102416 + 942520597225 = 2407804^2 + 970835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6740040699641 is a prime.

It is not a weakly prime, because it can be changed into another prime (6740040699671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3370020349820 + 3370020349821.

It is an arithmetic number, because the mean of its divisors is an integer number (3370020349821).

Almost surely, 2^{6740040699641} is an apocalyptic number.

It is an amenable number.

6740040699641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6740040699641 is an equidigital number, since it uses as much as digits as its factorization.

6740040699641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 6740040699641 in words is "six trillion, seven hundred forty billion, forty million, six hundred ninety-nine thousand, six hundred forty-one".