9865545846 has 16 divisors (see below), whose sum is σ = 21248868144. Its totient is φ = 3035552544.

The previous prime is 9865545821. The next prime is 9865545847. The reversal of 9865545846 is 6485455689.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9865545846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9865545847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63240601 + ... + 63240756.

It is an arithmetic number, because the mean of its divisors is an integer number (1328054259).

Almost surely, 2^9865545846 is an apocalyptic number.

9865545846 is an abundant number, since it is smaller than the sum of its proper divisors (11383322298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9865545846 is a wasteful number, since it uses less digits than its factorization.

9865545846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126481375.

The product of its digits is 41472000, while the sum is 60.

The square root of 9865545846 is about 99325.4541696135. The cubic root of 9865545846 is about 2144.7353321816.

The spelling of 9865545846 in words is "nine billion, eight hundred sixty-five million, five hundred forty-five thousand, eight hundred forty-six".