19728028114 has 16 divisors (see below), whose sum is σ = 31433515776. Its totient is φ = 9253921600.

The previous prime is 19728028109. The next prime is 19728028123. The reversal of 19728028114 is 41182082791.

It is a super-3 number, since 3×19728028114³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922282 + ... + 943429.

It is an arithmetic number, because the mean of its divisors is an integer number (1964594736).

Almost surely, 2^19728028114 is an apocalyptic number.

19728028114 is a deficient number, since it is larger than the sum of its proper divisors (11705487662).

19728028114 is a wasteful number, since it uses less digits than its factorization.

19728028114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866041.

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 19728028114 in words is "nineteen billion, seven hundred twenty-eight million, twenty-eight thousand, one hundred fourteen".