138363152177 has 2 divisors, whose sum is σ = 138363152178. Its totient is φ = 138363152176.

The previous prime is 138363152111. The next prime is 138363152183. The reversal of 138363152177 is 771251363831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117313785121 + 21049367056 = 342511^2 + 145084^2 .

It is a cyclic number.

It is not a de Polignac number, because 138363152177 - 2⁸ = 138363151921 is a prime.

It is not a weakly prime, because it can be changed into another prime (138363152077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69181576088 + 69181576089.

It is an arithmetic number, because the mean of its divisors is an integer number (69181576089).

Almost surely, 2^138363152177 is an apocalyptic number.

It is an amenable number.

138363152177 is a deficient number, since it is larger than the sum of its proper divisors (1).

138363152177 is an equidigital number, since it uses as much as digits as its factorization.

138363152177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The spelling of 138363152177 in words is "one hundred thirty-eight billion, three hundred sixty-three million, one hundred fifty-two thousand, one hundred seventy-seven".