126530672726069 has 2 divisors, whose sum is σ = 126530672726070. Its totient is φ = 126530672726068.

The previous prime is 126530672725993. The next prime is 126530672726173. The reversal of 126530672726069 is 960627276035621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106390189251844 + 20140483474225 = 10314562^2 + 4487815^2 .

It is a cyclic number.

It is not a de Polignac number, because 126530672726069 - 2⁸ = 126530672725813 is a prime.

It is a super-3 number, since 3×126530672726069³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126530672726569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63265336363034 + 63265336363035.

It is an arithmetic number, because the mean of its divisors is an integer number (63265336363035).

Almost surely, 2^{126530672726069} is an apocalyptic number.

It is an amenable number.

126530672726069 is a deficient number, since it is larger than the sum of its proper divisors (1).

126530672726069 is an equidigital number, since it uses as much as digits as its factorization.

126530672726069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68584320, while the sum is 62.

The spelling of 126530672726069 in words is "one hundred twenty-six trillion, five hundred thirty billion, six hundred seventy-two million, seven hundred twenty-six thousand, sixty-nine".