127042168987 has 2 divisors, whose sum is σ = 127042168988. Its totient is φ = 127042168986.

The previous prime is 127042168961. The next prime is 127042169053. The reversal of 127042168987 is 789861240721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127042168987 - 2²⁷ = 126907951259 is a prime.

It is a super-2 number, since 2×127042168987² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127042168907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63521084493 + 63521084494.

It is an arithmetic number, because the mean of its divisors is an integer number (63521084494).

Almost surely, 2^127042168987 is an apocalyptic number.

127042168987 is a deficient number, since it is larger than the sum of its proper divisors (1).

127042168987 is an equidigital number, since it uses as much as digits as its factorization.

127042168987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 127042168987 in words is "one hundred twenty-seven billion, forty-two million, one hundred sixty-eight thousand, nine hundred eighty-seven".