126106912609 has 2 divisors, whose sum is σ = 126106912610. Its totient is φ = 126106912608.

The previous prime is 126106912559. The next prime is 126106912621. The reversal of 126106912609 is 906219601621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115938207009 + 10168705600 = 340497^2 + 100840^2 .

It is a cyclic number.

It is not a de Polignac number, because 126106912609 - 2⁹ = 126106912097 is a prime.

It is not a weakly prime, because it can be changed into another prime (126106912109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63053456304 + 63053456305.

It is an arithmetic number, because the mean of its divisors is an integer number (63053456305).

Almost surely, 2^126106912609 is an apocalyptic number.

It is an amenable number.

126106912609 is a deficient number, since it is larger than the sum of its proper divisors (1).

126106912609 is an equidigital number, since it uses as much as digits as its factorization.

126106912609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 126106912609 in words is "one hundred twenty-six billion, one hundred six million, nine hundred twelve thousand, six hundred nine".