340111857643 has 2 divisors, whose sum is σ = 340111857644. Its totient is φ = 340111857642.

The previous prime is 340111857629. The next prime is 340111857677. The reversal of 340111857643 is 346758111043.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340111857643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340111857643.

It is not a weakly prime, because it can be changed into another prime (340111857623) 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, 170055928821 + 170055928822.

It is an arithmetic number, because the mean of its divisors is an integer number (170055928822).

Almost surely, 2^340111857643 is an apocalyptic number.

340111857643 is a deficient number, since it is larger than the sum of its proper divisors (1).

340111857643 is an equidigital number, since it uses as much as digits as its factorization.

340111857643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

Adding to 340111857643 its reverse (346758111043), we get a palindrome (686869968686).

The spelling of 340111857643 in words is "three hundred forty billion, one hundred eleven million, eight hundred fifty-seven thousand, six hundred forty-three".