126488967589 has 2 divisors, whose sum is σ = 126488967590. Its totient is φ = 126488967588.

The previous prime is 126488967581. The next prime is 126488967617. The reversal of 126488967589 is 985769884621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122260716964 + 4228250625 = 349658^2 + 65025^2 .

It is a cyclic number.

It is not a de Polignac number, because 126488967589 - 2³ = 126488967581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126488967581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63244483794 + 63244483795.

It is an arithmetic number, because the mean of its divisors is an integer number (63244483795).

Almost surely, 2^126488967589 is an apocalyptic number.

It is an amenable number.

126488967589 is a deficient number, since it is larger than the sum of its proper divisors (1).

126488967589 is an equidigital number, since it uses as much as digits as its factorization.

126488967589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 418037760, while the sum is 73.

The spelling of 126488967589 in words is "one hundred twenty-six billion, four hundred eighty-eight million, nine hundred sixty-seven thousand, five hundred eighty-nine".