19842147683 has 4 divisors (see below), whose sum is σ = 19924480488. Its totient is φ = 19759814880.

The previous prime is 19842147653. The next prime is 19842147709. The reversal of 19842147683 is 38674124891.

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 19842147683 - 2¹⁰ = 19842146659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19842147613) 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, 41166041 + ... + 41166522.

It is an arithmetic number, because the mean of its divisors is an integer number (4981120122).

Almost surely, 2^19842147683 is an apocalyptic number.

19842147683 is a deficient number, since it is larger than the sum of its proper divisors (82332805).

19842147683 is an equidigital number, since it uses as much as digits as its factorization.

19842147683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82332804.

The product of its digits is 2322432, while the sum is 53.

The spelling of 19842147683 in words is "nineteen billion, eight hundred forty-two million, one hundred forty-seven thousand, six hundred eighty-three".