6343780243 has 2 divisors, whose sum is σ = 6343780244. Its totient is φ = 6343780242.

The previous prime is 6343780187. The next prime is 6343780279. The reversal of 6343780243 is 3420873436.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6343780243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6343780196 and 6343780205.

It is not a weakly prime, because it can be changed into another prime (6343780283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3171890121 + 3171890122.

It is an arithmetic number, because the mean of its divisors is an integer number (3171890122).

Almost surely, 2^6343780243 is an apocalyptic number.

6343780243 is a deficient number, since it is larger than the sum of its proper divisors (1).

6343780243 is an equidigital number, since it uses as much as digits as its factorization.

6343780243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 40.

The square root of 6343780243 is about 79647.8514650584. The cubic root of 6343780243 is about 1851.1830993791.

The spelling of 6343780243 in words is "six billion, three hundred forty-three million, seven hundred eighty thousand, two hundred forty-three".