127660838873 has 2 divisors, whose sum is σ = 127660838874. Its totient is φ = 127660838872.

The previous prime is 127660838843. The next prime is 127660838933. The reversal of 127660838873 is 378838066721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96052265929 + 31608572944 = 309923^2 + 177788^2 .

It is an emirp because it is prime and its reverse (378838066721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127660838873 - 2²⁸ = 127392403417 is a prime.

It is not a weakly prime, because it can be changed into another prime (127660838803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63830419436 + 63830419437.

It is an arithmetic number, because the mean of its divisors is an integer number (63830419437).

Almost surely, 2^127660838873 is an apocalyptic number.

It is an amenable number.

127660838873 is a deficient number, since it is larger than the sum of its proper divisors (1).

127660838873 is an equidigital number, since it uses as much as digits as its factorization.

127660838873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16257024, while the sum is 59.

The spelling of 127660838873 in words is "one hundred twenty-seven billion, six hundred sixty million, eight hundred thirty-eight thousand, eight hundred seventy-three".