19696140800 has 120 divisors (see below), whose sum is σ = 55770228096. Its totient is φ = 6752931840.

The previous prime is 19696140797. The next prime is 19696140887. The reversal of 19696140800 is 804169691.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20312 + ... + 199511.

Almost surely, 2^19696140800 is an apocalyptic number.

19696140800 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 19696140800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27885114048).

19696140800 is an abundant number, since it is smaller than the sum of its proper divisors (36074087296).

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

19696140800 is an equidigital number, since it uses as much as digits as its factorization.

19696140800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219858 (or 219837 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 19696140800 in words is "nineteen billion, six hundred ninety-six million, one hundred forty thousand, eight hundred".