127925709017 has 2 divisors, whose sum is σ = 127925709018. Its totient is φ = 127925709016.

The previous prime is 127925709011. The next prime is 127925709097. The reversal of 127925709017 is 710907529721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69136917721 + 58788791296 = 262939^2 + 242464^2 .

It is a cyclic number.

It is not a de Polignac number, because 127925709017 - 2⁴ = 127925709001 is a prime.

It is not a weakly prime, because it can be changed into another prime (127925709011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63962854508 + 63962854509.

It is an arithmetic number, because the mean of its divisors is an integer number (63962854509).

Almost surely, 2^127925709017 is an apocalyptic number.

It is an amenable number.

127925709017 is a deficient number, since it is larger than the sum of its proper divisors (1).

127925709017 is an equidigital number, since it uses as much as digits as its factorization.

127925709017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 555660, while the sum is 50.

The spelling of 127925709017 in words is "one hundred twenty-seven billion, nine hundred twenty-five million, seven hundred nine thousand, seventeen".