1683843980112 has 160 divisors (see below), whose sum is σ = 5538775654400. Its totient is φ = 479787069312.

The previous prime is 1683843980111. The next prime is 1683843980123. The reversal of 1683843980112 is 2110893483861.

1683843980112 is a `hidden beast` number, since 1 + 68 + 3 + 84 + 398 + 0 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683843980111) 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, 351189 + ... + 1868427.

It is an arithmetic number, because the mean of its divisors is an integer number (34617347840).

Almost surely, 2^{1683843980112} is an apocalyptic number.

1683843980112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1683843980112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2769387827200).

1683843980112 is an abundant number, since it is smaller than the sum of its proper divisors (3854931674288).

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

1683843980112 is a wasteful number, since it uses less digits than its factorization.

1683843980112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517630 (or 1517618 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 1683843980112 in words is "one trillion, six hundred eighty-three billion, eight hundred forty-three million, nine hundred eighty thousand, one hundred twelve".