138159257927 has 2 divisors, whose sum is σ = 138159257928. Its totient is φ = 138159257926.

The previous prime is 138159257897. The next prime is 138159257933. The reversal of 138159257927 is 729752951831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138159257927 - 2¹⁴ = 138159241543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138159257987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69079628963 + 69079628964.

It is an arithmetic number, because the mean of its divisors is an integer number (69079628964).

Almost surely, 2^138159257927 is an apocalyptic number.

138159257927 is a deficient number, since it is larger than the sum of its proper divisors (1).

138159257927 is an equidigital number, since it uses as much as digits as its factorization.

138159257927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9525600, while the sum is 59.

The spelling of 138159257927 in words is "one hundred thirty-eight billion, one hundred fifty-nine million, two hundred fifty-seven thousand, nine hundred twenty-seven".