9854444644 has 24 divisors (see below), whose sum is σ = 19461758400. Its totient is φ = 4324834080.

The previous prime is 9854444629. The next prime is 9854444647. The reversal of 9854444644 is 4464444589.

It is a happy number.

9854444644 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 2×9854444644² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 9854444591 and 9854444600.

It is not an unprimeable number, because it can be changed into a prime (9854444647) 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, 3860184 + ... + 3862735.

It is an arithmetic number, because the mean of its divisors is an integer number (810906600).

Almost surely, 2^9854444644 is an apocalyptic number.

It is an amenable number.

9854444644 is a deficient number, since it is larger than the sum of its proper divisors (9607313756).

9854444644 is a wasteful number, since it uses less digits than its factorization.

9854444644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7722963 (or 7722961 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 52.

The square root of 9854444644 is about 99269.5554739720. Note that the first 3 decimals coincide. The cubic root of 9854444644 is about 2143.9305760290.

The spelling of 9854444644 in words is "nine billion, eight hundred fifty-four million, four hundred forty-four thousand, six hundred forty-four".