19129919352 has 64 divisors (see below), whose sum is σ = 50155200000. Its totient is φ = 6068709504.

The previous prime is 19129919327. The next prime is 19129919353. The reversal of 19129919352 is 25391992191.

It is a junction number, because it is equal to n+sod(n) for n = 19129919295 and 19129919304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19129919353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22774 + ... + 196922.

It is an arithmetic number, because the mean of its divisors is an integer number (783675000).

Almost surely, 2^19129919352 is an apocalyptic number.

19129919352 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 19129919352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25077600000).

19129919352 is an abundant number, since it is smaller than the sum of its proper divisors (31025280648).

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

19129919352 is a wasteful number, since it uses less digits than its factorization.

19129919352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174380 (or 174376 counting only the distinct ones).

The product of its digits is 393660, while the sum is 51.

The spelling of 19129919352 in words is "nineteen billion, one hundred twenty-nine million, nine hundred nineteen thousand, three hundred fifty-two".