138888144511 has 2 divisors, whose sum is σ = 138888144512. Its totient is φ = 138888144510.

The previous prime is 138888144509. The next prime is 138888144529. The reversal of 138888144511 is 115441888831.

It is a happy number.

138888144511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138888144511 - 2¹ = 138888144509 is a prime.

Together with 138888144509, 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 (138888144581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69444072255 + 69444072256.

It is an arithmetic number, because the mean of its divisors is an integer number (69444072256).

Almost surely, 2^138888144511 is an apocalyptic number.

138888144511 is a deficient number, since it is larger than the sum of its proper divisors (1).

138888144511 is an equidigital number, since it uses as much as digits as its factorization.

138888144511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 983040, while the sum is 52.

The spelling of 138888144511 in words is "one hundred thirty-eight billion, eight hundred eighty-eight million, one hundred forty-four thousand, five hundred eleven".