138611111388767 has 2 divisors, whose sum is σ = 138611111388768. Its totient is φ = 138611111388766.

The previous prime is 138611111388691. The next prime is 138611111388829. The reversal of 138611111388767 is 767883111116831.

It is a happy number.

It is an a-pointer prime, because the next prime (138611111388829) can be obtained adding 138611111388767 to its sum of digits (62).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138611111388767 - 2¹² = 138611111384671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138611111388067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69305555694383 + 69305555694384.

It is an arithmetic number, because the mean of its divisors is an integer number (69305555694384).

Almost surely, 2^{138611111388767} is an apocalyptic number.

138611111388767 is a deficient number, since it is larger than the sum of its proper divisors (1).

138611111388767 is an equidigital number, since it uses as much as digits as its factorization.

138611111388767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 62.

The spelling of 138611111388767 in words is "one hundred thirty-eight trillion, six hundred eleven billion, one hundred eleven million, three hundred eighty-eight thousand, seven hundred sixty-seven".