743340262409 has 2 divisors, whose sum is σ = 743340262410. Its totient is φ = 743340262408.

The previous prime is 743340262391. The next prime is 743340262411. The reversal of 743340262409 is 904262043347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508112352400 + 235227910009 = 712820^2 + 485003^2 .

It is a cyclic number.

It is not a de Polignac number, because 743340262409 - 2³² = 739045295113 is a prime.

Together with 743340262411, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 743340262409.

It is not a weakly prime, because it can be changed into another prime (743340262109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371670131204 + 371670131205.

It is an arithmetic number, because the mean of its divisors is an integer number (371670131205).

Almost surely, 2^743340262409 is an apocalyptic number.

It is an amenable number.

743340262409 is a deficient number, since it is larger than the sum of its proper divisors (1).

743340262409 is an equidigital number, since it uses as much as digits as its factorization.

743340262409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 743340262409 in words is "seven hundred forty-three billion, three hundred forty million, two hundred sixty-two thousand, four hundred nine".