19683879697 has 8 divisors (see below), whose sum is σ = 20112898176. Its totient is φ = 19255286832.

The previous prime is 19683879689. The next prime is 19683879701. The reversal of 19683879697 is 79697838691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19683879697 - 2³ = 19683879689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19683879497) 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, 11998 + ... + 198775.

It is an arithmetic number, because the mean of its divisors is an integer number (2514112272).

Almost surely, 2^19683879697 is an apocalyptic number.

It is an amenable number.

19683879697 is a deficient number, since it is larger than the sum of its proper divisors (429018479).

19683879697 is a wasteful number, since it uses less digits than its factorization.

19683879697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212807.

The product of its digits is 246903552, while the sum is 73.

The spelling of 19683879697 in words is "nineteen billion, six hundred eighty-three million, eight hundred seventy-nine thousand, six hundred ninety-seven".