126151771626709 has 2 divisors, whose sum is σ = 126151771626710. Its totient is φ = 126151771626708.

The previous prime is 126151771626701. The next prime is 126151771626799. The reversal of 126151771626709 is 907626177151621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85354132012900 + 40797639613809 = 9238730^2 + 6387303^2 .

It is a cyclic number.

It is not a de Polignac number, because 126151771626709 - 2³ = 126151771626701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126151771626701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63075885813354 + 63075885813355.

It is an arithmetic number, because the mean of its divisors is an integer number (63075885813355).

Almost surely, 2^{126151771626709} is an apocalyptic number.

It is an amenable number.

126151771626709 is a deficient number, since it is larger than the sum of its proper divisors (1).

126151771626709 is an equidigital number, since it uses as much as digits as its factorization.

126151771626709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13335840, while the sum is 61.

The spelling of 126151771626709 in words is "one hundred twenty-six trillion, one hundred fifty-one billion, seven hundred seventy-one million, six hundred twenty-six thousand, seven hundred nine".