844408400008 has 32 divisors (see below), whose sum is σ = 1668460887360. Its totient is φ = 399848996800.

The previous prime is 844408399997. The next prime is 844408400021. The reversal of 844408400008 is 800004804448.

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, 22700110 + ... + 22737277.

It is an arithmetic number, because the mean of its divisors is an integer number (52139402730).

Almost surely, 2^844408400008 is an apocalyptic number.

It is an amenable number.

844408400008 is a deficient number, since it is larger than the sum of its proper divisors (824052487352).

844408400008 is a wasteful number, since it uses less digits than its factorization.

844408400008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45437517 (or 45437513 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 844408400008 in words is "eight hundred forty-four billion, four hundred eight million, four hundred thousand, eight".