126866376001 has 4 divisors (see below), whose sum is σ = 130295197012. Its totient is φ = 123437554992.

The previous prime is 126866375959. The next prime is 126866376029. The reversal of 126866376001 is 100673668621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101235966976 + 25630409025 = 318176^2 + 160095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126866376001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126866376101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1714410450 + ... + 1714410523.

It is an arithmetic number, because the mean of its divisors is an integer number (32573799253).

Almost surely, 2^126866376001 is an apocalyptic number.

It is an amenable number.

126866376001 is a deficient number, since it is larger than the sum of its proper divisors (3428821011).

126866376001 is an equidigital number, since it uses as much as digits as its factorization.

126866376001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428821010.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 126866376001 in words is "one hundred twenty-six billion, eight hundred sixty-six million, three hundred seventy-six thousand, one".