843992110400172 has 48 divisors (see below), whose sum is σ = 1971516758141952. Its totient is φ = 281016249557760.

The previous prime is 843992110400147. The next prime is 843992110400221. The reversal of 843992110400172 is 271004011299348.

It is a super-2 number, since 2×843992110400172² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66174772 + ... + 77891492.

It is an arithmetic number, because the mean of its divisors is an integer number (41073265794624).

Almost surely, 2^{843992110400172} is an apocalyptic number.

It is an amenable number.

843992110400172 is an abundant number, since it is smaller than the sum of its proper divisors (1127524647741780).

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

843992110400172 is a wasteful number, since it uses less digits than its factorization.

843992110400172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11723438 (or 11723436 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 843992110400172 in words is "eight hundred forty-three trillion, nine hundred ninety-two billion, one hundred ten million, four hundred thousand, one hundred seventy-two".