20833434719 has 2 divisors, whose sum is σ = 20833434720. Its totient is φ = 20833434718.

The previous prime is 20833434689. The next prime is 20833434733. The reversal of 20833434719 is 91743433802.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20833434719 is a prime.

It is a super-2 number, since 2×20833434719² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20833434719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20833434749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10416717359 + 10416717360.

It is an arithmetic number, because the mean of its divisors is an integer number (10416717360).

Almost surely, 2^20833434719 is an apocalyptic number.

20833434719 is a deficient number, since it is larger than the sum of its proper divisors (1).

20833434719 is an equidigital number, since it uses as much as digits as its factorization.

20833434719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 20833434719 in words is "twenty billion, eight hundred thirty-three million, four hundred thirty-four thousand, seven hundred nineteen".