126817403678806 has 32 divisors (see below), whose sum is σ = 193816151167968. Its totient is φ = 62223211814400.

The previous prime is 126817403678803. The next prime is 126817403678831. The reversal of 126817403678806 is 608876304718621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126817403678803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 843277036 + ... + 843427408.

It is an arithmetic number, because the mean of its divisors is an integer number (6056754723999).

Almost surely, 2^{126817403678806} is an apocalyptic number.

126817403678806 is a deficient number, since it is larger than the sum of its proper divisors (66998747489162).

126817403678806 is a wasteful number, since it uses less digits than its factorization.

126817403678806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187536.

The product of its (nonzero) digits is 130056192, while the sum is 67.

The spelling of 126817403678806 in words is "one hundred twenty-six trillion, eight hundred seventeen billion, four hundred three million, six hundred seventy-eight thousand, eight hundred six".