19882752243 has 4 divisors (see below), whose sum is σ = 26510336328. Its totient is φ = 13255168160.

The previous prime is 19882752223. The next prime is 19882752283. The reversal of 19882752243 is 34225728891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19882752243 - 2¹³ = 19882744051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19882752223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3313792038 + ... + 3313792043.

It is an arithmetic number, because the mean of its divisors is an integer number (6627584082).

Almost surely, 2^19882752243 is an apocalyptic number.

19882752243 is a deficient number, since it is larger than the sum of its proper divisors (6627584085).

19882752243 is an equidigital number, since it uses as much as digits as its factorization.

19882752243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627584084.

The product of its digits is 1935360, while the sum is 51.

The spelling of 19882752243 in words is "nineteen billion, eight hundred eighty-two million, seven hundred fifty-two thousand, two hundred forty-three".