844404172782348 has 24 divisors (see below), whose sum is σ = 1970277174879552. Its totient is φ = 281467947348304.

The previous prime is 844404172782283. The next prime is 844404172782349. The reversal of 844404172782348 is 843287271404448.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (844404172782349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21809611 + ... + 46523837.

It is an arithmetic number, because the mean of its divisors is an integer number (82094882286648).

Almost surely, 2^{844404172782348} is an apocalyptic number.

It is an amenable number.

844404172782348 is an abundant number, since it is smaller than the sum of its proper divisors (1125873002097204).

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

844404172782348 is a wasteful number, since it uses less digits than its factorization.

844404172782348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27561461 (or 27561459 counting only the distinct ones).

The product of its (nonzero) digits is 308281344, while the sum is 66.

The spelling of 844404172782348 in words is "eight hundred forty-four trillion, four hundred four billion, one hundred seventy-two million, seven hundred eighty-two thousand, three hundred forty-eight".