19793325869 has 4 divisors (see below), whose sum is σ = 19798274496. Its totient is φ = 19788377244.

The previous prime is 19793325859. The next prime is 19793325883. The reversal of 19793325869 is 96852339791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96852339791 = 28879 ⋅3353729.

It is a cyclic number.

It is not a de Polignac number, because 19793325869 - 2²⁴ = 19776548653 is a prime.

It is a super-2 number, since 2×19793325869² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19793325859) by changing a digit.

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, 2468309 + ... + 2476314.

It is an arithmetic number, because the mean of its divisors is an integer number (4949568624).

Almost surely, 2^19793325869 is an apocalyptic number.

It is an amenable number.

19793325869 is a deficient number, since it is larger than the sum of its proper divisors (4948627).

19793325869 is an equidigital number, since it uses as much as digits as its factorization.

19793325869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4948626.

The product of its digits is 22044960, while the sum is 62.

The spelling of 19793325869 in words is "nineteen billion, seven hundred ninety-three million, three hundred twenty-five thousand, eight hundred sixty-nine".