1989518340096 has 1404 divisors, whose sum is σ = 7381472264712. Its totient is φ = 533750611968.

The previous prime is 1989518340059. The next prime is 1989518340127. The reversal of 1989518340096 is 6900438159891.

1989518340096 is a `hidden beast` number, since 1 + 9 + 89 + 518 + 34 + 0 + 0 + 9 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 17606356936 + ... + 17606357048.

It is an arithmetic number, because the mean of its divisors is an integer number (5257458878).

Almost surely, 2^{1989518340096} is an apocalyptic number.

1989518340096 is a gapful number since it is divisible by the number (16) 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 1989518340096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3690736132356).

1989518340096 is an abundant number, since it is smaller than the sum of its proper divisors (5391953924616).

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

1989518340096 is an equidigital number, since it uses as much as digits as its factorization.

1989518340096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

The spelling of 1989518340096 in words is "one trillion, nine hundred eighty-nine billion, five hundred eighteen million, three hundred forty thousand, ninety-six".