20104422847 has 2 divisors, whose sum is σ = 20104422848. Its totient is φ = 20104422846.

The previous prime is 20104422829. The next prime is 20104422881. The reversal of 20104422847 is 74822440102.

It is an a-pointer prime, because the next prime (20104422881) can be obtained adding 20104422847 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20104422847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20104422047) 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 as a sum of consecutive naturals, namely, 10052211423 + 10052211424.

It is an arithmetic number, because the mean of its divisors is an integer number (10052211424).

Almost surely, 2^20104422847 is an apocalyptic number.

20104422847 is a deficient number, since it is larger than the sum of its proper divisors (1).

20104422847 is an equidigital number, since it uses as much as digits as its factorization.

20104422847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28672, while the sum is 34.

Adding to 20104422847 its reverse (74822440102), we get a palindrome (94926862949).

The spelling of 20104422847 in words is "twenty billion, one hundred four million, four hundred twenty-two thousand, eight hundred forty-seven".