138124465847 has 2 divisors, whose sum is σ = 138124465848. Its totient is φ = 138124465846.

The previous prime is 138124465733. The next prime is 138124465873. The reversal of 138124465847 is 748564421831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138124465847 - 2¹⁶ = 138124400311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138124465247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69062232923 + 69062232924.

It is an arithmetic number, because the mean of its divisors is an integer number (69062232924).

Almost surely, 2^138124465847 is an apocalyptic number.

138124465847 is a deficient number, since it is larger than the sum of its proper divisors (1).

138124465847 is an equidigital number, since it uses as much as digits as its factorization.

138124465847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5160960, while the sum is 53.

The spelling of 138124465847 in words is "one hundred thirty-eight billion, one hundred twenty-four million, four hundred sixty-five thousand, eight hundred forty-seven".