20789336102839 has 2 divisors, whose sum is σ = 20789336102840. Its totient is φ = 20789336102838.

The previous prime is 20789336102833. The next prime is 20789336102921. The reversal of 20789336102839 is 93820163398702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20789336102839 - 2²³ = 20789327714231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20789336102833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10394668051419 + 10394668051420.

It is an arithmetic number, because the mean of its divisors is an integer number (10394668051420).

Almost surely, 2^{20789336102839} is an apocalyptic number.

20789336102839 is a deficient number, since it is larger than the sum of its proper divisors (1).

20789336102839 is an equidigital number, since it uses as much as digits as its factorization.

20789336102839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 20789336102839 in words is "twenty trillion, seven hundred eighty-nine billion, three hundred thirty-six million, one hundred two thousand, eight hundred thirty-nine".