8729684796839 has 2 divisors, whose sum is σ = 8729684796840. Its totient is φ = 8729684796838.

The previous prime is 8729684796803. The next prime is 8729684796863. The reversal of 8729684796839 is 9386974869278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8729684796839 - 2¹² = 8729684792743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8729684799839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4364842398419 + 4364842398420.

It is an arithmetic number, because the mean of its divisors is an integer number (4364842398420).

Almost surely, 2^{8729684796839} is an apocalyptic number.

8729684796839 is a deficient number, since it is larger than the sum of its proper divisors (1).

8729684796839 is an equidigital number, since it uses as much as digits as its factorization.

8729684796839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15801827328, while the sum is 86.

The spelling of 8729684796839 in words is "eight trillion, seven hundred twenty-nine billion, six hundred eighty-four million, seven hundred ninety-six thousand, eight hundred thirty-nine".