4489339861 has 2 divisors, whose sum is σ = 4489339862. Its totient is φ = 4489339860.

The previous prime is 4489339837. The next prime is 4489339901. The reversal of 4489339861 is 1689339844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4001195025 + 488144836 = 63255^2 + 22094^2 .

It is a cyclic number.

It is not a de Polignac number, because 4489339861 - 2¹¹ = 4489337813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4489339061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2244669930 + 2244669931.

It is an arithmetic number, because the mean of its divisors is an integer number (2244669931).

Almost surely, 2^4489339861 is an apocalyptic number.

It is an amenable number.

4489339861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4489339861 is an equidigital number, since it uses as much as digits as its factorization.

4489339861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4478976, while the sum is 55.

The square root of 4489339861 is about 67002.5362281160. The cubic root of 4489339861 is about 1649.6589268689.

The spelling of 4489339861 in words is "four billion, four hundred eighty-nine million, three hundred thirty-nine thousand, eight hundred sixty-one".