126280580375009 has 2 divisors, whose sum is σ = 126280580375010. Its totient is φ = 126280580375008.

The previous prime is 126280580374981. The next prime is 126280580375087. The reversal of 126280580375009 is 900573085082621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123556007580625 + 2724572794384 = 11115575^2 + 1650628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126280580375009 is a prime.

It is not a weakly prime, because it can be changed into another prime (126280580375809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63140290187504 + 63140290187505.

It is an arithmetic number, because the mean of its divisors is an integer number (63140290187505).

Almost surely, 2^{126280580375009} is an apocalyptic number.

It is an amenable number.

126280580375009 is a deficient number, since it is larger than the sum of its proper divisors (1).

126280580375009 is an equidigital number, since it uses as much as digits as its factorization.

126280580375009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 126280580375009 in words is "one hundred twenty-six trillion, two hundred eighty billion, five hundred eighty million, three hundred seventy-five thousand, nine".