340823246399 has 2 divisors, whose sum is σ = 340823246400. Its totient is φ = 340823246398.

The previous prime is 340823246363. The next prime is 340823246453. The reversal of 340823246399 is 993642328043.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (993642328043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340823246399 - 2²⁰ = 340822197823 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340823246399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340823246329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170411623199 + 170411623200.

It is an arithmetic number, because the mean of its divisors is an integer number (170411623200).

Almost surely, 2^340823246399 is an apocalyptic number.

340823246399 is a deficient number, since it is larger than the sum of its proper divisors (1).

340823246399 is an equidigital number, since it uses as much as digits as its factorization.

340823246399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6718464, while the sum is 53.

The spelling of 340823246399 in words is "three hundred forty billion, eight hundred twenty-three million, two hundred forty-six thousand, three hundred ninety-nine".