127465163394889 has 2 divisors, whose sum is σ = 127465163394890. Its totient is φ = 127465163394888.

The previous prime is 127465163394869. The next prime is 127465163394893. The reversal of 127465163394889 is 988493361564721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124747007760400 + 2718155634489 = 11169020^2 + 1648683^2 .

It is a cyclic number.

It is not a de Polignac number, because 127465163394889 - 2²⁹ = 127464626523977 is a prime.

It is not a weakly prime, because it can be changed into another prime (127465163394869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63732581697444 + 63732581697445.

It is an arithmetic number, because the mean of its divisors is an integer number (63732581697445).

Almost surely, 2^{127465163394889} is an apocalyptic number.

It is an amenable number.

127465163394889 is a deficient number, since it is larger than the sum of its proper divisors (1).

127465163394889 is an equidigital number, since it uses as much as digits as its factorization.

127465163394889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1881169920, while the sum is 76.

The spelling of 127465163394889 in words is "one hundred twenty-seven trillion, four hundred sixty-five billion, one hundred sixty-three million, three hundred ninety-four thousand, eight hundred eighty-nine".