19483774423 has 4 divisors (see below), whose sum is σ = 19484078688. Its totient is φ = 19483470160.

The previous prime is 19483774403. The next prime is 19483774481. The reversal of 19483774423 is 32447738491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32447738491 = 7 ⋅4635391213.

It is a cyclic number.

It is not a de Polignac number, because 19483774423 - 2⁵ = 19483774391 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 (19483774403) 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, 14686 + ... + 197947.

It is an arithmetic number, because the mean of its divisors is an integer number (4871019672).

Almost surely, 2^19483774423 is an apocalyptic number.

19483774423 is a deficient number, since it is larger than the sum of its proper divisors (304265).

19483774423 is an equidigital number, since it uses as much as digits as its factorization.

19483774423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304264.

The product of its digits is 4064256, while the sum is 52.

The spelling of 19483774423 in words is "nineteen billion, four hundred eighty-three million, seven hundred seventy-four thousand, four hundred twenty-three".