12838878758177 has 2 divisors, whose sum is σ = 12838878758178. Its totient is φ = 12838878758176.

The previous prime is 12838878758149. The next prime is 12838878758201. The reversal of 12838878758177 is 77185787883821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9079561059361 + 3759317698816 = 3013231^2 + 1938896^2 .

It is a cyclic number.

It is not a de Polignac number, because 12838878758177 - 2³⁶ = 12770159281441 is a prime.

It is not a weakly prime, because it can be changed into another prime (12838878458177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6419439379088 + 6419439379089.

It is an arithmetic number, because the mean of its divisors is an integer number (6419439379089).

Almost surely, 2^{12838878758177} is an apocalyptic number.

It is an amenable number.

12838878758177 is a deficient number, since it is larger than the sum of its proper divisors (1).

12838878758177 is an equidigital number, since it uses as much as digits as its factorization.

12838878758177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2360279040, while the sum is 80.

The spelling of 12838878758177 in words is "twelve trillion, eight hundred thirty-eight billion, eight hundred seventy-eight million, seven hundred fifty-eight thousand, one hundred seventy-seven".