127310864689 has 2 divisors, whose sum is σ = 127310864690. Its totient is φ = 127310864688.

The previous prime is 127310864687. The next prime is 127310864717. The reversal of 127310864689 is 986468013721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104778453025 + 22532411664 = 323695^2 + 150108^2 .

It is a cyclic number.

It is not a de Polignac number, because 127310864689 - 2¹ = 127310864687 is a prime.

Together with 127310864687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (127310864687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63655432344 + 63655432345.

It is an arithmetic number, because the mean of its divisors is an integer number (63655432345).

Almost surely, 2^127310864689 is an apocalyptic number.

It is an amenable number.

127310864689 is a deficient number, since it is larger than the sum of its proper divisors (1).

127310864689 is an equidigital number, since it uses as much as digits as its factorization.

127310864689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 127310864689 in words is "one hundred twenty-seven billion, three hundred ten million, eight hundred sixty-four thousand, six hundred eighty-nine".