20795891339 has 2 divisors, whose sum is σ = 20795891340. Its totient is φ = 20795891338.

The previous prime is 20795891327. The next prime is 20795891341. The reversal of 20795891339 is 93319859702.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20795891339 is a prime.

Together with 20795891341, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20795891309) 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, 10397945669 + 10397945670.

It is an arithmetic number, because the mean of its divisors is an integer number (10397945670).

Almost surely, 2^20795891339 is an apocalyptic number.

20795891339 is a deficient number, since it is larger than the sum of its proper divisors (1).

20795891339 is an equidigital number, since it uses as much as digits as its factorization.

20795891339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3674160, while the sum is 56.

The spelling of 20795891339 in words is "twenty billion, seven hundred ninety-five million, eight hundred ninety-one thousand, three hundred thirty-nine".