8643845011 has 2 divisors, whose sum is σ = 8643845012. Its totient is φ = 8643845010.

The previous prime is 8643844991. The next prime is 8643845033. The reversal of 8643845011 is 1105483468.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8643845011 - 2⁷ = 8643844883 is a prime.

It is not a weakly prime, because it can be changed into another prime (8643845311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4321922505 + 4321922506.

It is an arithmetic number, because the mean of its divisors is an integer number (4321922506).

Almost surely, 2^8643845011 is an apocalyptic number.

8643845011 is a deficient number, since it is larger than the sum of its proper divisors (1).

8643845011 is an equidigital number, since it uses as much as digits as its factorization.

8643845011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 8643845011 is about 92972.2808744628. The cubic root of 8643845011 is about 2052.2754832916.

The spelling of 8643845011 in words is "eight billion, six hundred forty-three million, eight hundred forty-five thousand, eleven".