126756642841 has 2 divisors, whose sum is σ = 126756642842. Its totient is φ = 126756642840.

The previous prime is 126756642833. The next prime is 126756642869. The reversal of 126756642841 is 148246657621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73720395225 + 53036247616 = 271515^2 + 230296^2 .

It is a cyclic number.

It is not a de Polignac number, because 126756642841 - 2³ = 126756642833 is a prime.

It is not a weakly prime, because it can be changed into another prime (126756642821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63378321420 + 63378321421.

It is an arithmetic number, because the mean of its divisors is an integer number (63378321421).

Almost surely, 2^126756642841 is an apocalyptic number.

It is an amenable number.

126756642841 is a deficient number, since it is larger than the sum of its proper divisors (1).

126756642841 is an equidigital number, since it uses as much as digits as its factorization.

126756642841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 52.

The spelling of 126756642841 in words is "one hundred twenty-six billion, seven hundred fifty-six million, six hundred forty-two thousand, eight hundred forty-one".