13438756327 has 2 divisors, whose sum is σ = 13438756328. Its totient is φ = 13438756326.

The previous prime is 13438756321. The next prime is 13438756349. The reversal of 13438756327 is 72365783431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13438756327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13438756321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6719378163 + 6719378164.

It is an arithmetic number, because the mean of its divisors is an integer number (6719378164).

Almost surely, 2^13438756327 is an apocalyptic number.

13438756327 is a deficient number, since it is larger than the sum of its proper divisors (1).

13438756327 is an equidigital number, since it uses as much as digits as its factorization.

13438756327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 49.

The spelling of 13438756327 in words is "thirteen billion, four hundred thirty-eight million, seven hundred fifty-six thousand, three hundred twenty-seven".