9859455959 has 4 divisors (see below), whose sum is σ = 9862484520. Its totient is φ = 9856427400.

The previous prime is 9859455943. The next prime is 9859456021. The reversal of 9859455959 is 9595549589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9595549589 = 49747 ⋅192887.

It is a cyclic number.

It is not a de Polignac number, because 9859455959 - 2⁴ = 9859455943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9859455059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509392 + ... + 1515909.

It is an arithmetic number, because the mean of its divisors is an integer number (2465621130).

Almost surely, 2^9859455959 is an apocalyptic number.

9859455959 is a deficient number, since it is larger than the sum of its proper divisors (3028561).

9859455959 is a wasteful number, since it uses less digits than its factorization.

9859455959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028560.

The product of its digits is 131220000, while the sum is 68.

The square root of 9859455959 is about 99294.7932119303. The cubic root of 9859455959 is about 2144.2939345995.

The spelling of 9859455959 in words is "nine billion, eight hundred fifty-nine million, four hundred fifty-five thousand, nine hundred fifty-nine".