20024042047 has 2 divisors, whose sum is σ = 20024042048. Its totient is φ = 20024042046.

The previous prime is 20024042041. The next prime is 20024042063. The reversal of 20024042047 is 74024042002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20024042047 - 2¹¹ = 20024039999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20024042041) 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 as a sum of consecutive naturals, namely, 10012021023 + 10012021024.

It is an arithmetic number, because the mean of its divisors is an integer number (10012021024).

Almost surely, 2^20024042047 is an apocalyptic number.

20024042047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024042047 is an equidigital number, since it uses as much as digits as its factorization.

20024042047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 25.

Adding to 20024042047 its reverse (74024042002), we get a palindrome (94048084049).

The spelling of 20024042047 in words is "twenty billion, twenty-four million, forty-two thousand, forty-seven".