1228461877127 has 2 divisors, whose sum is σ = 1228461877128. Its totient is φ = 1228461877126.

The previous prime is 1228461877039. The next prime is 1228461877129. The reversal of 1228461877127 is 7217781648221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1228461877127 is a prime.

Together with 1228461877129, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228461877129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614230938563 + 614230938564.

It is an arithmetic number, because the mean of its divisors is an integer number (614230938564).

Almost surely, 2^{1228461877127} is an apocalyptic number.

1228461877127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228461877127 is an equidigital number, since it uses as much as digits as its factorization.

1228461877127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4214784, while the sum is 56.

The spelling of 1228461877127 in words is "one trillion, two hundred twenty-eight billion, four hundred sixty-one million, eight hundred seventy-seven thousand, one hundred twenty-seven".