126291348629 has 2 divisors, whose sum is σ = 126291348630. Its totient is φ = 126291348628.

The previous prime is 126291348607. The next prime is 126291348643. The reversal of 126291348629 is 926843192621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123977931025 + 2313417604 = 352105^2 + 48098^2 .

It is a cyclic number.

It is not a de Polignac number, because 126291348629 - 2²⁴ = 126274571413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126291348679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63145674314 + 63145674315.

It is an arithmetic number, because the mean of its divisors is an integer number (63145674315).

Almost surely, 2^126291348629 is an apocalyptic number.

It is an amenable number.

126291348629 is a deficient number, since it is larger than the sum of its proper divisors (1).

126291348629 is an equidigital number, since it uses as much as digits as its factorization.

126291348629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 53.

The spelling of 126291348629 in words is "one hundred twenty-six billion, two hundred ninety-one million, three hundred forty-eight thousand, six hundred twenty-nine".