19728314024 has 32 divisors (see below), whose sum is σ = 37608902400. Its totient is φ = 9699376320.

The previous prime is 19728313991. The next prime is 19728314029. The reversal of 19728314024 is 42041382791.

It is not an unprimeable number, because it can be changed into a prime (19728314029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2752157 + ... + 2759315.

It is an arithmetic number, because the mean of its divisors is an integer number (1175278200).

Almost surely, 2^19728314024 is an apocalyptic number.

It is an amenable number.

19728314024 is a deficient number, since it is larger than the sum of its proper divisors (17880588376).

19728314024 is a wasteful number, since it uses less digits than its factorization.

19728314024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12873 (or 12869 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 19728314024 in words is "nineteen billion, seven hundred twenty-eight million, three hundred fourteen thousand, twenty-four".