12876787171 has 2 divisors, whose sum is σ = 12876787172. Its totient is φ = 12876787170.

The previous prime is 12876787159. The next prime is 12876787193. The reversal of 12876787171 is 17178767821.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (17178767821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12876787171 - 2⁷ = 12876787043 is a prime.

It is not a weakly prime, because it can be changed into another prime (12876787871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6438393585 + 6438393586.

It is an arithmetic number, because the mean of its divisors is an integer number (6438393586).

Almost surely, 2^12876787171 is an apocalyptic number.

12876787171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12876787171 is an equidigital number, since it uses as much as digits as its factorization.

12876787171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1843968, while the sum is 55.

The spelling of 12876787171 in words is "twelve billion, eight hundred seventy-six million, seven hundred eighty-seven thousand, one hundred seventy-one".