2485639439 has 2 divisors, whose sum is σ = 2485639440. Its totient is φ = 2485639438.

The previous prime is 2485639433. The next prime is 2485639447. The reversal of 2485639439 is 9349365842.

2485639439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2485639439 - 2⁸ = 2485639183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2485639433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1242819719 + 1242819720.

It is an arithmetic number, because the mean of its divisors is an integer number (1242819720).

Almost surely, 2^2485639439 is an apocalyptic number.

2485639439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2485639439 is an equidigital number, since it uses as much as digits as its factorization.

2485639439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 53.

The square root of 2485639439 is about 49856.1875698493. The cubic root of 2485639439 is about 1354.6051125268.

The spelling of 2485639439 in words is "two billion, four hundred eighty-five million, six hundred thirty-nine thousand, four hundred thirty-nine".