1983933342168 has 128 divisors (see below), whose sum is σ = 5293514903040. Its totient is φ = 617460480000.

The previous prime is 1983933342161. The next prime is 1983933342187. The reversal of 1983933342168 is 8612433393891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983933342161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26736318 + ... + 26810418.

It is an arithmetic number, because the mean of its divisors is an integer number (41355585180).

Almost surely, 2^{1983933342168} 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 1983933342168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2646757451520).

1983933342168 is an abundant number, since it is smaller than the sum of its proper divisors (3309581560872).

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

1983933342168 is a wasteful number, since it uses less digits than its factorization.

1983933342168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74649 (or 74645 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 60.

The spelling of 1983933342168 in words is "one trillion, nine hundred eighty-three billion, nine hundred thirty-three million, three hundred forty-two thousand, one hundred sixty-eight".