1989622483200 has 1728 divisors, whose sum is σ = 8485706880000. Its totient is φ = 451082649600.

The previous prime is 1989622483187. The next prime is 1989622483213. The reversal of 1989622483200 is 23842269891.

1989622483200 is a `hidden beast` number, since 1 + 9 + 8 + 9 + 622 + 4 + 8 + 3 + 2 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1989622483187) and next prime (1989622483213).

It is a tau number, because it is divible by the number of its divisors (1728).

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3214252491 + ... + 3214253109.

It is an arithmetic number, because the mean of its divisors is an integer number (4910710000).

Almost surely, 2^{1989622483200} is an apocalyptic number.

1989622483200 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 1989622483200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4242853440000).

1989622483200 is an abundant number, since it is smaller than the sum of its proper divisors (6496084396800).

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

1989622483200 is a wasteful number, since it uses less digits than its factorization.

1989622483200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 1989622483200 in words is "one trillion, nine hundred eighty-nine billion, six hundred twenty-two million, four hundred eighty-three thousand, two hundred".