2740435940309 has 2 divisors, whose sum is σ = 2740435940310. Its totient is φ = 2740435940308.

The previous prime is 2740435940267. The next prime is 2740435940311. The reversal of 2740435940309 is 9030495340472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1834697340100 + 905738600209 = 1354510^2 + 951703^2 .

It is a cyclic number.

It is not a de Polignac number, because 2740435940309 - 2¹⁶ = 2740435874773 is a prime.

It is a super-2 number, since 2×2740435940309² (a number of 26 digits) contains 22 as substring.

Together with 2740435940311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2740435940509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1370217970154 + 1370217970155.

It is an arithmetic number, because the mean of its divisors is an integer number (1370217970155).

Almost surely, 2^{2740435940309} is an apocalyptic number.

It is an amenable number.

2740435940309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2740435940309 is an equidigital number, since it uses as much as digits as its factorization.

2740435940309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 2740435940309 in words is "two trillion, seven hundred forty billion, four hundred thirty-five million, nine hundred forty thousand, three hundred nine".