1993939084800 has 1440 divisors, whose sum is σ = 8194984237440. Its totient is φ = 460239667200.

The previous prime is 1993939084733. The next prime is 1993939084849. The reversal of 1993939084800 is 84809393991.

It is a happy number.

1993939084800 is a `hidden beast` number, since 1 + 9 + 9 + 393 + 90 + 84 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7357708665 + ... + 7357708935.

It is an arithmetic number, because the mean of its divisors is an integer number (5690961276).

Almost surely, 2^{1993939084800} is an apocalyptic number.

1993939084800 is a gapful number since it is divisible by the number (10) 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 1993939084800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4097492118720).

1993939084800 is an abundant number, since it is smaller than the sum of its proper divisors (6201045152640).

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

1993939084800 is a wasteful number, since it uses less digits than its factorization.

1993939084800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 63.

The spelling of 1993939084800 in words is "one trillion, nine hundred ninety-three billion, nine hundred thirty-nine million, eighty-four thousand, eight hundred".