844401804941 has 4 divisors (see below), whose sum is σ = 858713700000. Its totient is φ = 830089909884.

The previous prime is 844401804937. The next prime is 844401804943. The reversal of 844401804941 is 149408104448.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 844401804941 - 2² = 844401804937 is a prime.

It is a super-4 number, since 4×844401804941⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844401804943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7155947441 + ... + 7155947558.

It is an arithmetic number, because the mean of its divisors is an integer number (214678425000).

Almost surely, 2^844401804941 is an apocalyptic number.

It is an amenable number.

844401804941 is a deficient number, since it is larger than the sum of its proper divisors (14311895059).

844401804941 is a wasteful number, since it uses less digits than its factorization.

844401804941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14311895058.

The product of its (nonzero) digits is 589824, while the sum is 47.

The spelling of 844401804941 in words is "eight hundred forty-four billion, four hundred one million, eight hundred four thousand, nine hundred forty-one".