4839449189 has 2 divisors, whose sum is σ = 4839449190. Its totient is φ = 4839449188.

The previous prime is 4839449183. The next prime is 4839449221. The reversal of 4839449189 is 9819449384.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2828644225 + 2010804964 = 53185^2 + 44842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4839449189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4839449183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2419724594 + 2419724595.

It is an arithmetic number, because the mean of its divisors is an integer number (2419724595).

Almost surely, 2^4839449189 is an apocalyptic number.

It is an amenable number.

4839449189 is a deficient number, since it is larger than the sum of its proper divisors (1).

4839449189 is an equidigital number, since it uses as much as digits as its factorization.

4839449189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 59.

The square root of 4839449189 is about 69566.1497353418. The cubic root of 4839449189 is about 1691.4739412962.

The spelling of 4839449189 in words is "four billion, eight hundred thirty-nine million, four hundred forty-nine thousand, one hundred eighty-nine".