127204847376889 has 2 divisors, whose sum is σ = 127204847376890. Its totient is φ = 127204847376888.

The previous prime is 127204847376863. The next prime is 127204847376899. The reversal of 127204847376889 is 988673748402721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111295853599225 + 15908993777664 = 10549685^2 + 3988608^2 .

It is a cyclic number.

It is not a de Polignac number, because 127204847376889 - 2²¹ = 127204845279737 is a prime.

It is a super-2 number, since 2×127204847376889² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127204847376899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63602423688444 + 63602423688445.

It is an arithmetic number, because the mean of its divisors is an integer number (63602423688445).

Almost surely, 2^{127204847376889} is an apocalyptic number.

It is an amenable number.

127204847376889 is a deficient number, since it is larger than the sum of its proper divisors (1).

127204847376889 is an equidigital number, since it uses as much as digits as its factorization.

127204847376889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1820786688, while the sum is 76.

The spelling of 127204847376889 in words is "one hundred twenty-seven trillion, two hundred four billion, eight hundred forty-seven million, three hundred seventy-six thousand, eight hundred eighty-nine".