20833314917 has 2 divisors, whose sum is σ = 20833314918. Its totient is φ = 20833314916.

The previous prime is 20833314911. The next prime is 20833314919. The reversal of 20833314917 is 71941333802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18854310721 + 1979004196 = 137311^2 + 44486^2 .

It is a cyclic number.

It is not a de Polignac number, because 20833314917 - 2⁸ = 20833314661 is a prime.

Together with 20833314919, 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 (20833314911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10416657458 + 10416657459.

It is an arithmetic number, because the mean of its divisors is an integer number (10416657459).

Almost surely, 2^20833314917 is an apocalyptic number.

It is an amenable number.

20833314917 is a deficient number, since it is larger than the sum of its proper divisors (1).

20833314917 is an equidigital number, since it uses as much as digits as its factorization.

20833314917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 20833314917 in words is "twenty billion, eight hundred thirty-three million, three hundred fourteen thousand, nine hundred seventeen".