853761855 has 16 divisors (see below), whose sum is σ = 1410084864. Its totient is φ = 440651040.

The previous prime is 853761851. The next prime is 853761869. The reversal of 853761855 is 558167358.

It is not a de Polignac number, because 853761855 - 2² = 853761851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853761851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 917559 + ... + 918488.

It is an arithmetic number, because the mean of its divisors is an integer number (88130304).

Almost surely, 2^853761855 is an apocalyptic number.

853761855 is a deficient number, since it is larger than the sum of its proper divisors (556323009).

853761855 is a wasteful number, since it uses less digits than its factorization.

853761855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836086.

The product of its digits is 1008000, while the sum is 48.

The square root of 853761855 is about 29219.2035312395. The cubic root of 853761855 is about 948.6636260702.

The spelling of 853761855 in words is "eight hundred fifty-three million, seven hundred sixty-one thousand, eight hundred fifty-five".