853923853851 has 16 divisors (see below), whose sum is σ = 1198513334400. Its totient is φ = 539309657088.

The previous prime is 853923853841. The next prime is 853923853877. The reversal of 853923853851 is 158358329358.

It is not a de Polignac number, because 853923853851 - 2⁵ = 853923853819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (853923853801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3567835 + ... + 3799643.

It is an arithmetic number, because the mean of its divisors is an integer number (74907083400).

Almost surely, 2^853923853851 is an apocalyptic number.

853923853851 is a deficient number, since it is larger than the sum of its proper divisors (344589480549).

853923853851 is a wasteful number, since it uses less digits than its factorization.

853923853851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296458.

The product of its digits is 31104000, while the sum is 60.

The spelling of 853923853851 in words is "eight hundred fifty-three billion, nine hundred twenty-three million, eight hundred fifty-three thousand, eight hundred fifty-one".