19696384927 has 4 divisors (see below), whose sum is σ = 19707993216. Its totient is φ = 19684776640.

The previous prime is 19696384919. The next prime is 19696384933. The reversal of 19696384927 is 72948369691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19696384927 - 2³ = 19696384919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19696384427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5801599 + ... + 5804992.

It is an arithmetic number, because the mean of its divisors is an integer number (4926998304).

Almost surely, 2^19696384927 is an apocalyptic number.

19696384927 is a deficient number, since it is larger than the sum of its proper divisors (11608289).

19696384927 is a wasteful number, since it uses less digits than its factorization.

19696384927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11608288.

The product of its digits is 35271936, while the sum is 64.

The spelling of 19696384927 in words is "nineteen billion, six hundred ninety-six million, three hundred eighty-four thousand, nine hundred twenty-seven".