138813190027 has 2 divisors, whose sum is σ = 138813190028. Its totient is φ = 138813190026.

The previous prime is 138813189961. The next prime is 138813190037. The reversal of 138813190027 is 720091318831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138813190027 - 2¹¹ = 138813187979 is a prime.

It is not a weakly prime, because it can be changed into another prime (138813190037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69406595013 + 69406595014.

It is an arithmetic number, because the mean of its divisors is an integer number (69406595014).

Almost surely, 2^138813190027 is an apocalyptic number.

138813190027 is a deficient number, since it is larger than the sum of its proper divisors (1).

138813190027 is an equidigital number, since it uses as much as digits as its factorization.

138813190027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 138813190027 in words is "one hundred thirty-eight billion, eight hundred thirteen million, one hundred ninety thousand, twenty-seven".