844513349212 has 48 divisors (see below), whose sum is σ = 1685335196160. Its totient is φ = 366819167232.

The previous prime is 844513349149. The next prime is 844513349257. The reversal of 844513349212 is 212943315448.

It is a super-2 number, since 2×844513349212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14848453 + ... + 14905219.

It is an arithmetic number, because the mean of its divisors is an integer number (35111149920).

Almost surely, 2^844513349212 is an apocalyptic number.

It is an amenable number.

844513349212 is a deficient number, since it is larger than the sum of its proper divisors (840821846948).

844513349212 is a wasteful number, since it uses less digits than its factorization.

844513349212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73630 (or 73628 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The spelling of 844513349212 in words is "eight hundred forty-four billion, five hundred thirteen million, three hundred forty-nine thousand, two hundred twelve".