8411824643 has 2 divisors, whose sum is σ = 8411824644. Its totient is φ = 8411824642.

The previous prime is 8411824637. The next prime is 8411824667. The reversal of 8411824643 is 3464281148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8411824643 - 2¹⁶ = 8411759107 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 8411824643.

It is not a weakly prime, because it can be changed into another prime (8411824633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4205912321 + 4205912322.

It is an arithmetic number, because the mean of its divisors is an integer number (4205912322).

Almost surely, 2^8411824643 is an apocalyptic number.

8411824643 is a deficient number, since it is larger than the sum of its proper divisors (1).

8411824643 is an equidigital number, since it uses as much as digits as its factorization.

8411824643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147456, while the sum is 41.

The square root of 8411824643 is about 91715.9999291291. Note that the first 4 decimals coincide. The cubic root of 8411824643 is about 2033.7461175184.

The spelling of 8411824643 in words is "eight billion, four hundred eleven million, eight hundred twenty-four thousand, six hundred forty-three".