2659345878 has 32 divisors (see below), whose sum is σ = 6288111360. Its totient is φ = 733612320.

The previous prime is 2659345867. The next prime is 2659345883. The reversal of 2659345878 is 8785439562.

2659345878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1090468 + ... + 1092903.

It is an arithmetic number, because the mean of its divisors is an integer number (196503480).

Almost surely, 2^2659345878 is an apocalyptic number.

2659345878 is an abundant number, since it is smaller than the sum of its proper divisors (3628765482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2659345878 is a wasteful number, since it uses less digits than its factorization.

2659345878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183412.

The product of its digits is 14515200, while the sum is 57.

The square root of 2659345878 is about 51568.8460022134. The cubic root of 2659345878 is about 1385.4523978382.

The spelling of 2659345878 in words is "two billion, six hundred fifty-nine million, three hundred forty-five thousand, eight hundred seventy-eight".