19500202000 has 80 divisors (see below), whose sum is σ = 47748729600. Its totient is φ = 7701283200.

The previous prime is 19500201979. The next prime is 19500202013. The reversal of 19500202000 is 20200591.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 96291 + ... + 219709.

It is an arithmetic number, because the mean of its divisors is an integer number (596859120).

Almost surely, 2^19500202000 is an apocalyptic number.

19500202000 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 19500202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23874364800).

19500202000 is an abundant number, since it is smaller than the sum of its proper divisors (28248527600).

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

19500202000 is a wasteful number, since it uses less digits than its factorization.

19500202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123521 (or 123505 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 19500202000 its reverse (20200591), we get a palindrome (19520402591).

The spelling of 19500202000 in words is "nineteen billion, five hundred million, two hundred two thousand".