844041178920 has 32 divisors (see below), whose sum is σ = 2532123537120. Its totient is φ = 225077647680.

The previous prime is 844041178913. The next prime is 844041178943. The reversal of 844041178920 is 29871140448.

It is a self number, because there is not a number n which added to its sum of digits gives 844041178920.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3516838126 + ... + 3516838365.

It is an arithmetic number, because the mean of its divisors is an integer number (79128860535).

Almost surely, 2^844041178920 is an apocalyptic number.

It is an amenable number.

844041178920 is an abundant number, since it is smaller than the sum of its proper divisors (1688082358200).

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

844041178920 is a wasteful number, since it uses less digits than its factorization.

844041178920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033676505 (or 7033676501 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 844041178920 in words is "eight hundred forty-four billion, forty-one million, one hundred seventy-eight thousand, nine hundred twenty".