20334808447 has 2 divisors, whose sum is σ = 20334808448. Its totient is φ = 20334808446.

The previous prime is 20334808421. The next prime is 20334808457. The reversal of 20334808447 is 74480843302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20334808447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20334808457) 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, 10167404223 + 10167404224.

It is an arithmetic number, because the mean of its divisors is an integer number (10167404224).

Almost surely, 2^20334808447 is an apocalyptic number.

20334808447 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334808447 is an equidigital number, since it uses as much as digits as its factorization.

20334808447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 516096, while the sum is 43.

The spelling of 20334808447 in words is "twenty billion, three hundred thirty-four million, eight hundred eight thousand, four hundred forty-seven".