127860773489 has 2 divisors, whose sum is σ = 127860773490. Its totient is φ = 127860773488.

The previous prime is 127860773461. The next prime is 127860773503. The reversal of 127860773489 is 984377068721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124321118464 + 3539655025 = 352592^2 + 59495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127860773489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (127860770489) 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, 63930386744 + 63930386745.

It is an arithmetic number, because the mean of its divisors is an integer number (63930386745).

Almost surely, 2^127860773489 is an apocalyptic number.

It is an amenable number.

127860773489 is a deficient number, since it is larger than the sum of its proper divisors (1).

127860773489 is an equidigital number, since it uses as much as digits as its factorization.

127860773489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 127860773489 in words is "one hundred twenty-seven billion, eight hundred sixty million, seven hundred seventy-three thousand, four hundred eighty-nine".