12551238677267 has 2 divisors, whose sum is σ = 12551238677268. Its totient is φ = 12551238677266.

The previous prime is 12551238677221. The next prime is 12551238677291. The reversal of 12551238677267 is 76277683215521.

It is a happy number.

12551238677267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12551238677267 - 2²⁰ = 12551237628691 is a prime.

It is not a weakly prime, because it can be changed into another prime (12551238677207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6275619338633 + 6275619338634.

It is an arithmetic number, because the mean of its divisors is an integer number (6275619338634).

Almost surely, 2^{12551238677267} is an apocalyptic number.

12551238677267 is a deficient number, since it is larger than the sum of its proper divisors (1).

12551238677267 is an equidigital number, since it uses as much as digits as its factorization.

12551238677267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59270400, while the sum is 62.

The spelling of 12551238677267 in words is "twelve trillion, five hundred fifty-one billion, two hundred thirty-eight million, six hundred seventy-seven thousand, two hundred sixty-seven".