13723944866839 has 2 divisors, whose sum is σ = 13723944866840. Its totient is φ = 13723944866838.

The previous prime is 13723944866837. The next prime is 13723944866893. The reversal of 13723944866839 is 93866844932731.

Together with next prime (13723944866893) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13723944866839 - 2¹ = 13723944866837 is a prime.

Together with 13723944866837, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13723944866831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6861972433419 + 6861972433420.

It is an arithmetic number, because the mean of its divisors is an integer number (6861972433420).

Almost surely, 2^{13723944866839} is an apocalyptic number.

13723944866839 is a deficient number, since it is larger than the sum of its proper divisors (1).

13723944866839 is an equidigital number, since it uses as much as digits as its factorization.

13723944866839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128701952, while the sum is 73.

The spelling of 13723944866839 in words is "thirteen trillion, seven hundred twenty-three billion, nine hundred forty-four million, eight hundred sixty-six thousand, eight hundred thirty-nine".