19383421699360 has 96 divisors (see below), whose sum is σ = 48216146952960. Its totient is φ = 7343370897408.

The previous prime is 19383421699357. The next prime is 19383421699373. The reversal of 19383421699360 is 6399612438391.

It is a super-2 number, since 2×19383421699360² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19383421699292 and 19383421699301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10788004 + ... + 12455836.

It is an arithmetic number, because the mean of its divisors is an integer number (502251530760).

Almost surely, 2^{19383421699360} is an apocalyptic number.

19383421699360 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 19383421699360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24108073476480).

19383421699360 is an abundant number, since it is smaller than the sum of its proper divisors (28832725253600).

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

19383421699360 is a wasteful number, since it uses less digits than its factorization.

19383421699360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671690 (or 1671682 counting only the distinct ones).

The product of its (nonzero) digits is 45349632, while the sum is 64.

The spelling of 19383421699360 in words is "nineteen trillion, three hundred eighty-three billion, four hundred twenty-one million, six hundred ninety-nine thousand, three hundred sixty".