126317980559 has 2 divisors, whose sum is σ = 126317980560. Its totient is φ = 126317980558.

The previous prime is 126317980543. The next prime is 126317980561. The reversal of 126317980559 is 955089713621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126317980559 - 2⁴ = 126317980543 is a prime.

It is a Sophie Germain prime.

Together with 126317980561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126317982559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63158990279 + 63158990280.

It is an arithmetic number, because the mean of its divisors is an integer number (63158990280).

Almost surely, 2^126317980559 is an apocalyptic number.

126317980559 is a deficient number, since it is larger than the sum of its proper divisors (1).

126317980559 is an equidigital number, since it uses as much as digits as its factorization.

126317980559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 56.

The spelling of 126317980559 in words is "one hundred twenty-six billion, three hundred seventeen million, nine hundred eighty thousand, five hundred fifty-nine".