127336077569 has 2 divisors, whose sum is σ = 127336077570. Its totient is φ = 127336077568.

The previous prime is 127336077521. The next prime is 127336077593. The reversal of 127336077569 is 965770633721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118379347969 + 8956729600 = 344063^2 + 94640^2 .

It is an emirp because it is prime and its reverse (965770633721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127336077569 is a prime.

It is a super-2 number, since 2×127336077569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127336073569) 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, 63668038784 + 63668038785.

It is an arithmetic number, because the mean of its divisors is an integer number (63668038785).

Almost surely, 2^127336077569 is an apocalyptic number.

It is an amenable number.

127336077569 is a deficient number, since it is larger than the sum of its proper divisors (1).

127336077569 is an equidigital number, since it uses as much as digits as its factorization.

127336077569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10001880, while the sum is 56.

The spelling of 127336077569 in words is "one hundred twenty-seven billion, three hundred thirty-six million, seventy-seven thousand, five hundred sixty-nine".