4489261687 has 2 divisors, whose sum is σ = 4489261688. Its totient is φ = 4489261686.

The previous prime is 4489261669. The next prime is 4489261697. The reversal of 4489261687 is 7861629844.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4489261687 - 2³¹ = 2341778039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4489261607) 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 as a sum of consecutive naturals, namely, 2244630843 + 2244630844.

It is an arithmetic number, because the mean of its divisors is an integer number (2244630844).

Almost surely, 2^4489261687 is an apocalyptic number.

4489261687 is a deficient number, since it is larger than the sum of its proper divisors (1).

4489261687 is an equidigital number, since it uses as much as digits as its factorization.

4489261687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864, while the sum is 55.

The square root of 4489261687 is about 67001.9528595995. The cubic root of 4489261687 is about 1649.6493515052.

The spelling of 4489261687 in words is "four billion, four hundred eighty-nine million, two hundred sixty-one thousand, six hundred eighty-seven".