2853872891 has 4 divisors (see below), whose sum is σ = 2920242072. Its totient is φ = 2787503712.

The previous prime is 2853872873. The next prime is 2853872911. The reversal of 2853872891 is 1982783582.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2853872891 - 2²⁶ = 2786764027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2853872831) 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 in 3 ways as a sum of consecutive naturals, for example, 33184526 + ... + 33184611.

It is an arithmetic number, because the mean of its divisors is an integer number (730060518).

Almost surely, 2^2853872891 is an apocalyptic number.

2853872891 is a deficient number, since it is larger than the sum of its proper divisors (66369181).

2853872891 is an equidigital number, since it uses as much as digits as its factorization.

2853872891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66369180.

The product of its digits is 1935360, while the sum is 53.

The square root of 2853872891 is about 53421.6518932165. The cubic root of 2853872891 is about 1418.4418687545.

The spelling of 2853872891 in words is "two billion, eight hundred fifty-three million, eight hundred seventy-two thousand, eight hundred ninety-one".