853843807872 has 256 divisors, whose sum is σ = 2756820096000. Its totient is φ = 258015697920.

The previous prime is 853843807849. The next prime is 853843807903. The reversal of 853843807872 is 278708348358.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 13616463 + ... + 13679025.

It is an arithmetic number, because the mean of its divisors is an integer number (10768828500).

Almost surely, 2^853843807872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 853843807872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378410048000).

853843807872 is an abundant number, since it is smaller than the sum of its proper divisors (1902976288128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

853843807872 is a wasteful number, since it uses less digits than its factorization.

853843807872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62956 (or 62938 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 63.

The spelling of 853843807872 in words is "eight hundred fifty-three billion, eight hundred forty-three million, eight hundred seven thousand, eight hundred seventy-two".