20350214447 has 2 divisors, whose sum is σ = 20350214448. Its totient is φ = 20350214446.

The previous prime is 20350214431. The next prime is 20350214449. The reversal of 20350214447 is 74441205302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20350214447 - 2⁴ = 20350214431 is a prime.

Together with 20350214449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20350214449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175107223 + 10175107224.

It is an arithmetic number, because the mean of its divisors is an integer number (10175107224).

Almost surely, 2^20350214447 is an apocalyptic number.

20350214447 is a deficient number, since it is larger than the sum of its proper divisors (1).

20350214447 is an equidigital number, since it uses as much as digits as its factorization.

20350214447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 32.

Adding to 20350214447 its reverse (74441205302), we get a palindrome (94791419749).

The spelling of 20350214447 in words is "twenty billion, three hundred fifty million, two hundred fourteen thousand, four hundred forty-seven".