19803368587002 has 128 divisors (see below), whose sum is σ = 53211352965120. Its totient is φ = 4745107146240.

The previous prime is 19803368586979. The next prime is 19803368587003. The reversal of 19803368587002 is 20078586330891.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (19803368587003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8639023 + ... + 10688285.

It is an arithmetic number, because the mean of its divisors is an integer number (415713695040).

Almost surely, 2^{19803368587002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19803368587002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26605676482560).

19803368587002 is an abundant number, since it is smaller than the sum of its proper divisors (33407984378118).

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

19803368587002 is a wasteful number, since it uses less digits than its factorization.

19803368587002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050908.

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 19803368587002 in words is "nineteen trillion, eight hundred three billion, three hundred sixty-eight million, five hundred eighty-seven thousand, two".