19793336500 has 96 divisors (see below), whose sum is σ = 49468962816. Its totient is φ = 6777388800.

The previous prime is 19793336473. The next prime is 19793336551. The reversal of 19793336500 is 563339791.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3017224 + ... + 3023776.

It is an arithmetic number, because the mean of its divisors is an integer number (515301696).

Almost surely, 2^19793336500 is an apocalyptic number.

19793336500 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 19793336500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24734481408).

19793336500 is an abundant number, since it is smaller than the sum of its proper divisors (29675626316).

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

19793336500 is a wasteful number, since it uses less digits than its factorization.

19793336500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7442 (or 7430 counting only the distinct ones).

The product of its (nonzero) digits is 459270, while the sum is 46.

The spelling of 19793336500 in words is "nineteen billion, seven hundred ninety-three million, three hundred thirty-six thousand, five hundred".