12677613217 has 2 divisors, whose sum is σ = 12677613218. Its totient is φ = 12677613216.

The previous prime is 12677613211. The next prime is 12677613281. The reversal of 12677613217 is 71231677621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9482085376 + 3195527841 = 97376^2 + 56529^2 .

It is a cyclic number.

It is not a de Polignac number, because 12677613217 - 2³ = 12677613209 is a prime.

It is not a weakly prime, because it can be changed into another prime (12677613211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6338806608 + 6338806609.

It is an arithmetic number, because the mean of its divisors is an integer number (6338806609).

Almost surely, 2^12677613217 is an apocalyptic number.

It is an amenable number.

12677613217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12677613217 is an equidigital number, since it uses as much as digits as its factorization.

12677613217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 43.

The spelling of 12677613217 in words is "twelve billion, six hundred seventy-seven million, six hundred thirteen thousand, two hundred seventeen".