1999380023200 has 288 divisors, whose sum is σ = 5939451100800. Its totient is φ = 641568276480.

The previous prime is 1999380023167. The next prime is 1999380023219. The reversal of 1999380023200 is 23200839991.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16982136 + ... + 17099464.

It is an arithmetic number, because the mean of its divisors is an integer number (20623094100).

Almost surely, 2^{1999380023200} is an apocalyptic number.

1999380023200 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 1999380023200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2969725550400).

1999380023200 is an abundant number, since it is smaller than the sum of its proper divisors (3940071077600).

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

1999380023200 is a wasteful number, since it uses less digits than its factorization.

1999380023200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117552 (or 117539 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 1999380023200 in words is "one trillion, nine hundred ninety-nine billion, three hundred eighty million, twenty-three thousand, two hundred".