844040401845 has 8 divisors (see below), whose sum is σ = 1350464642976. Its totient is φ = 450154880976.

The previous prime is 844040401837. The next prime is 844040401849. The reversal of 844040401845 is 548104040448.

844040401845 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 844040401845 - 2³ = 844040401837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 844040401797 and 844040401806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844040401849) 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, 28134680047 + ... + 28134680076.

It is an arithmetic number, because the mean of its divisors is an integer number (168808080372).

Almost surely, 2^844040401845 is an apocalyptic number.

It is an amenable number.

844040401845 is a deficient number, since it is larger than the sum of its proper divisors (506424241131).

844040401845 is a wasteful number, since it uses less digits than its factorization.

844040401845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56269360131.

The product of its (nonzero) digits is 327680, while the sum is 42.

The spelling of 844040401845 in words is "eight hundred forty-four billion, forty million, four hundred one thousand, eight hundred forty-five".