19823354416 has 10 divisors (see below), whose sum is σ = 38407749212. Its totient is φ = 9911677200.

The previous prime is 19823354413. The next prime is 19823354483. The reversal of 19823354416 is 61445332891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19823354413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619479810 + ... + 619479841.

Almost surely, 2^19823354416 is an apocalyptic number.

19823354416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19823354416 is a deficient number, since it is larger than the sum of its proper divisors (18584394796).

19823354416 is a wasteful number, since it uses less digits than its factorization.

19823354416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238959659 (or 1238959653 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The spelling of 19823354416 in words is "nineteen billion, eight hundred twenty-three million, three hundred fifty-four thousand, four hundred sixteen".