126583545709 has 2 divisors, whose sum is σ = 126583545710. Its totient is φ = 126583545708.

The previous prime is 126583545703. The next prime is 126583545713. The reversal of 126583545709 is 907545385621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126540275625 + 43270084 = 355725^2 + 6578^2 .

It is a cyclic number.

It is not a de Polignac number, because 126583545709 - 2⁹ = 126583545197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126583545709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126583545703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63291772854 + 63291772855.

It is an arithmetic number, because the mean of its divisors is an integer number (63291772855).

It is a 2-persistent number, because it is pandigital, and so is 2⋅126583545709 = 253167091418, but 3⋅126583545709 = 379750637127 is not.

Almost surely, 2^126583545709 is an apocalyptic number.

It is an amenable number.

126583545709 is a deficient number, since it is larger than the sum of its proper divisors (1).

126583545709 is an equidigital number, since it uses as much as digits as its factorization.

126583545709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072000, while the sum is 55.

The spelling of 126583545709 in words is "one hundred twenty-six billion, five hundred eighty-three million, five hundred forty-five thousand, seven hundred nine".