2851851805 has 32 divisors (see below), whose sum is σ = 3846268800. Its totient is φ = 2011994880.

The previous prime is 2851851773. The next prime is 2851851823. The reversal of 2851851805 is 5081581582.

It is not a de Polignac number, because 2851851805 - 2⁵ = 2851851773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 348339 + ... + 356431.

It is an arithmetic number, because the mean of its divisors is an integer number (120195900).

Almost surely, 2^2851851805 is an apocalyptic number.

It is an amenable number.

2851851805 is a deficient number, since it is larger than the sum of its proper divisors (994416995).

2851851805 is a wasteful number, since it uses less digits than its factorization.

2851851805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8301.

The product of its (nonzero) digits is 128000, while the sum is 43.

The square root of 2851851805 is about 53402.7321866588. The cubic root of 2851851805 is about 1418.1069472725.

The spelling of 2851851805 in words is "two billion, eight hundred fifty-one million, eight hundred fifty-one thousand, eight hundred five".