2585066878 has 16 divisors (see below), whose sum is σ = 3941658000. Its totient is φ = 1271344896.

The previous prime is 2585066863. The next prime is 2585066879. The reversal of 2585066878 is 8786605852.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585066879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9253 + ... + 72496.

It is an arithmetic number, because the mean of its divisors is an integer number (246353625).

Almost surely, 2^2585066878 is an apocalyptic number.

2585066878 is a deficient number, since it is larger than the sum of its proper divisors (1356591122).

2585066878 is a wasteful number, since it uses less digits than its factorization.

2585066878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82011.

The product of its (nonzero) digits is 6451200, while the sum is 55.

The square root of 2585066878 is about 50843.5529639698. The cubic root of 2585066878 is about 1372.4312376370.

The spelling of 2585066878 in words is "two billion, five hundred eighty-five million, sixty-six thousand, eight hundred seventy-eight".