844673747652 has 144 divisors (see below), whose sum is σ = 2549604637440. Its totient is φ = 241129224000.

The previous prime is 844673747651. The next prime is 844673747669. The reversal of 844673747652 is 256747376448.

844673747652 is a `hidden beast` number, since 8 + 4 + 46 + 73 + 7 + 476 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 844673747652.

It is not an unprimeable number, because it can be changed into a prime (844673747651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6182277 + ... + 6317427.

It is an arithmetic number, because the mean of its divisors is an integer number (17705587760).

Almost surely, 2^844673747652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 844673747652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274802318720).

844673747652 is an abundant number, since it is smaller than the sum of its proper divisors (1704930889788).

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

844673747652 is a wasteful number, since it uses less digits than its factorization.

844673747652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136359 (or 136344 counting only the distinct ones).

The product of its digits is 189665280, while the sum is 63.

The spelling of 844673747652 in words is "eight hundred forty-four billion, six hundred seventy-three million, seven hundred forty-seven thousand, six hundred fifty-two".