2309843609399 has 2 divisors, whose sum is σ = 2309843609400. Its totient is φ = 2309843609398.

The previous prime is 2309843609351. The next prime is 2309843609401. The reversal of 2309843609399 is 9939063489032.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2309843609399 is a prime.

It is a super-2 number, since 2×2309843609399² (a number of 26 digits) contains 22 as substring.

Together with 2309843609401, 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 (2309843629399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154921804699 + 1154921804700.

It is an arithmetic number, because the mean of its divisors is an integer number (1154921804700).

Almost surely, 2^{2309843609399} is an apocalyptic number.

2309843609399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2309843609399 is an equidigital number, since it uses as much as digits as its factorization.

2309843609399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68024448, while the sum is 65.

The spelling of 2309843609399 in words is "two trillion, three hundred nine billion, eight hundred forty-three million, six hundred nine thousand, three hundred ninety-nine".