126448277057 has 2 divisors, whose sum is σ = 126448277058. Its totient is φ = 126448277056.

The previous prime is 126448277051. The next prime is 126448277069. The reversal of 126448277057 is 750772844621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117127533121 + 9320743936 = 342239^2 + 96544^2 .

It is a cyclic number.

It is not a de Polignac number, because 126448277057 - 2³⁰ = 125374535233 is a prime.

It is not a weakly prime, because it can be changed into another prime (126448277051) 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, 63224138528 + 63224138529.

It is an arithmetic number, because the mean of its divisors is an integer number (63224138529).

Almost surely, 2^126448277057 is an apocalyptic number.

It is an amenable number.

126448277057 is a deficient number, since it is larger than the sum of its proper divisors (1).

126448277057 is an equidigital number, since it uses as much as digits as its factorization.

126448277057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5268480, while the sum is 53.

The spelling of 126448277057 in words is "one hundred twenty-six billion, four hundred forty-eight million, two hundred seventy-seven thousand, fifty-seven".