2851385878 has 8 divisors (see below), whose sum is σ = 4665904200. Its totient is φ = 1296084480.

The previous prime is 2851385869. The next prime is 2851385881. The reversal of 2851385878 is 8785831582.

2851385878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64804203 + ... + 64804246.

It is an arithmetic number, because the mean of its divisors is an integer number (583238025).

Almost surely, 2^2851385878 is an apocalyptic number.

2851385878 is a deficient number, since it is larger than the sum of its proper divisors (1814518322).

2851385878 is a wasteful number, since it uses less digits than its factorization.

2851385878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129608462.

The product of its digits is 4300800, while the sum is 55.

The square root of 2851385878 is about 53398.3696193058. The cubic root of 2851385878 is about 1418.0297143788.

The spelling of 2851385878 in words is "two billion, eight hundred fifty-one million, three hundred eighty-five thousand, eight hundred seventy-eight".