4086542839 has 2 divisors, whose sum is σ = 4086542840. Its totient is φ = 4086542838.

The previous prime is 4086542777. The next prime is 4086542843. The reversal of 4086542839 is 9382456804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4086542839 - 2¹¹ = 4086540791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4086542792 and 4086542801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4086542869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2043271419 + 2043271420.

It is an arithmetic number, because the mean of its divisors is an integer number (2043271420).

Almost surely, 2^4086542839 is an apocalyptic number.

4086542839 is a deficient number, since it is larger than the sum of its proper divisors (1).

4086542839 is an equidigital number, since it uses as much as digits as its factorization.

4086542839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The square root of 4086542839 is about 63926.0732330713. The cubic root of 4086542839 is about 1598.7676498926.

The spelling of 4086542839 in words is "four billion, eighty-six million, five hundred forty-two thousand, eight hundred thirty-nine".