9861744846 has 16 divisors (see below), whose sum is σ = 20883695184. Its totient is φ = 3093880704.

The previous prime is 9861744839. The next prime is 9861744847. The reversal of 9861744846 is 6484471689.

It is a happy number.

9861744846 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9861744846² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9861744847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48341785 + ... + 48341988.

It is an arithmetic number, because the mean of its divisors is an integer number (1305230949).

Almost surely, 2^9861744846 is an apocalyptic number.

9861744846 is an abundant number, since it is smaller than the sum of its proper divisors (11021950338).

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

9861744846 is a wasteful number, since it uses less digits than its factorization.

9861744846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96683795.

The product of its digits is 9289728, while the sum is 57.

The square root of 9861744846 is about 99306.3182582055. The cubic root of 9861744846 is about 2144.4598554095.

The spelling of 9861744846 in words is "nine billion, eight hundred sixty-one million, seven hundred forty-four thousand, eight hundred forty-six".