19682448197 has 4 divisors (see below), whose sum is σ = 19785497856. Its totient is φ = 19579398540.

The previous prime is 19682448133. The next prime is 19682448217. The reversal of 19682448197 is 79184428691.

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.

It is not a de Polignac number, because 19682448197 - 2⁶ = 19682448133 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 (19682441197) 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, 51524543 + ... + 51524924.

It is an arithmetic number, because the mean of its divisors is an integer number (4946374464).

Almost surely, 2^19682448197 is an apocalyptic number.

It is an amenable number.

19682448197 is a deficient number, since it is larger than the sum of its proper divisors (103049659).

19682448197 is a wasteful number, since it uses less digits than its factorization.

19682448197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103049658.

The product of its digits is 6967296, while the sum is 59.

The spelling of 19682448197 in words is "nineteen billion, six hundred eighty-two million, four hundred forty-eight thousand, one hundred ninety-seven".