19329728012 has 12 divisors (see below), whose sum is σ = 38659456080. Its totient is φ = 8284169136.

The previous prime is 19329727961. The next prime is 19329728017. The reversal of 19329728012 is 21082792391.

19329728012 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (19329728017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345173687 + ... + 345173742.

It is an arithmetic number, because the mean of its divisors is an integer number (3221621340).

Almost surely, 2^19329728012 is an apocalyptic number.

It is an amenable number.

19329728012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19329728012 is a wasteful number, since it uses less digits than its factorization.

19329728012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690347440 (or 690347438 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 19329728012 in words is "nineteen billion, three hundred twenty-nine million, seven hundred twenty-eight thousand, twelve".