19699928352 has 576 divisors, whose sum is σ = 67343028480. Its totient is φ = 5616635904.

The previous prime is 19699928257. The next prime is 19699928371. The reversal of 19699928352 is 25382999691.

19699928352 is a `hidden beast` number, since 196 + 9 + 9 + 92 + 8 + 352 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19699928352.

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 95 ways as a sum of consecutive naturals, for example, 86025774 + ... + 86026002.

It is an arithmetic number, because the mean of its divisors is an integer number (116914980).

Almost surely, 2^19699928352 is an apocalyptic number.

19699928352 is a gapful number since it is divisible by the number (12) 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 19699928352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33671514240).

19699928352 is an abundant number, since it is smaller than the sum of its proper divisors (47643100128).

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

19699928352 is a wasteful number, since it uses less digits than its factorization.

19699928352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 307 counting only the distinct ones).

The product of its digits is 18895680, while the sum is 63.

The spelling of 19699928352 in words is "nineteen billion, six hundred ninety-nine million, nine hundred twenty-eight thousand, three hundred fifty-two".