9859455943 has 2 divisors, whose sum is σ = 9859455944. Its totient is φ = 9859455942.

The previous prime is 9859455937. The next prime is 9859456021. The reversal of 9859455943 is 3495549589.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9859455943 - 2²⁵ = 9825901511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9859455913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4929727971 + 4929727972.

It is an arithmetic number, because the mean of its divisors is an integer number (4929727972).

Almost surely, 2^9859455943 is an apocalyptic number.

9859455943 is a deficient number, since it is larger than the sum of its proper divisors (1).

9859455943 is an equidigital number, since it uses as much as digits as its factorization.

9859455943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992000, while the sum is 61.

The square root of 9859455943 is about 99294.7931313621. The cubic root of 9859455943 is about 2144.2939334396.

The spelling of 9859455943 in words is "nine billion, eight hundred fifty-nine million, four hundred fifty-five thousand, nine hundred forty-three".