8366534243 has 2 divisors, whose sum is σ = 8366534244. Its totient is φ = 8366534242.

The previous prime is 8366534227. The next prime is 8366534279. The reversal of 8366534243 is 3424356638.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8366534243 - 2⁴ = 8366534227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8366534194 and 8366534203.

It is not a weakly prime, because it can be changed into another prime (8366534203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4183267121 + 4183267122.

It is an arithmetic number, because the mean of its divisors is an integer number (4183267122).

Almost surely, 2^8366534243 is an apocalyptic number.

8366534243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8366534243 is an equidigital number, since it uses as much as digits as its factorization.

8366534243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 44.

The square root of 8366534243 is about 91468.7610225480. The cubic root of 8366534243 is about 2030.0895592510.

The spelling of 8366534243 in words is "eight billion, three hundred sixty-six million, five hundred thirty-four thousand, two hundred forty-three".