2585740847 has 2 divisors, whose sum is σ = 2585740848. Its totient is φ = 2585740846.

The previous prime is 2585740823. The next prime is 2585740873. The reversal of 2585740847 is 7480475852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2585740847 - 2¹⁰ = 2585739823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2585740795 and 2585740804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2585740897) 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, 1292870423 + 1292870424.

It is an arithmetic number, because the mean of its divisors is an integer number (1292870424).

Almost surely, 2^2585740847 is an apocalyptic number.

2585740847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2585740847 is an equidigital number, since it uses as much as digits as its factorization.

2585740847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2508800, while the sum is 50.

The square root of 2585740847 is about 50850.1804028265. The cubic root of 2585740847 is about 1372.5504989919.

The spelling of 2585740847 in words is "two billion, five hundred eighty-five million, seven hundred forty thousand, eight hundred forty-seven".