4944847189 has 8 divisors (see below), whose sum is σ = 5066387928. Its totient is φ = 4823351040.

The previous prime is 4944847157. The next prime is 4944847207. The reversal of 4944847189 is 9817484494.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 796199089 + 4148648100 = 28217^2 + 64410^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4944847189 - 2⁵ = 4944847157 is a prime.

It is a super-2 number, since 2×4944847189² = 48903027445122403442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4944847139) 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, 376359 + ... + 389275.

It is an arithmetic number, because the mean of its divisors is an integer number (633298491).

Almost surely, 2^4944847189 is an apocalyptic number.

It is an amenable number.

4944847189 is a deficient number, since it is larger than the sum of its proper divisors (121540739).

4944847189 is a wasteful number, since it uses less digits than its factorization.

4944847189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22295.

The product of its digits is 9289728, while the sum is 58.

The square root of 4944847189 is about 70319.6074292228. The cubic root of 4944847189 is about 1703.6653543439.

The spelling of 4944847189 in words is "four billion, nine hundred forty-four million, eight hundred forty-seven thousand, one hundred eighty-nine".