127925709589 has 2 divisors, whose sum is σ = 127925709590. Its totient is φ = 127925709588.

The previous prime is 127925709517. The next prime is 127925709601. The reversal of 127925709589 is 985907529721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120843140625 + 7082568964 = 347625^2 + 84158^2 .

It is a cyclic number.

It is not a de Polignac number, because 127925709589 - 2¹⁹ = 127925185301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127925709589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127925704589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63962854794 + 63962854795.

It is an arithmetic number, because the mean of its divisors is an integer number (63962854795).

Almost surely, 2^127925709589 is an apocalyptic number.

It is an amenable number.

127925709589 is a deficient number, since it is larger than the sum of its proper divisors (1).

127925709589 is an equidigital number, since it uses as much as digits as its factorization.

127925709589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28576800, while the sum is 64.

The spelling of 127925709589 in words is "one hundred twenty-seven billion, nine hundred twenty-five million, seven hundred nine thousand, five hundred eighty-nine".