19696424578 has 8 divisors (see below), whose sum is σ = 30829186368. Its totient is φ = 9420029124.

The previous prime is 19696424567. The next prime is 19696424599. The reversal of 19696424578 is 87542469691.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214091526 + ... + 214091617.

It is an arithmetic number, because the mean of its divisors is an integer number (3853648296).

Almost surely, 2^19696424578 is an apocalyptic number.

19696424578 is a deficient number, since it is larger than the sum of its proper divisors (11132761790).

19696424578 is a wasteful number, since it uses less digits than its factorization.

19696424578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428183168.

The product of its digits is 26127360, while the sum is 61.

The spelling of 19696424578 in words is "nineteen billion, six hundred ninety-six million, four hundred twenty-four thousand, five hundred seventy-eight".