982172818944 has 160 divisors (see below), whose sum is σ = 2914222718880. Its totient is φ = 326611353600.

The previous prime is 982172818909. The next prime is 982172818961. The reversal of 982172818944 is 449818271289.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5735524 + ... + 5904284.

It is an arithmetic number, because the mean of its divisors is an integer number (18213891993).

Almost surely, 2^982172818944 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 982172818944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1457111359440).

982172818944 is an abundant number, since it is smaller than the sum of its proper divisors (1932049899936).

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

982172818944 is a wasteful number, since it uses less digits than its factorization.

982172818944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169209 (or 169187 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 63.

The spelling of 982172818944 in words is "nine hundred eighty-two billion, one hundred seventy-two million, eight hundred eighteen thousand, nine hundred forty-four".