126726376447 has 16 divisors (see below), whose sum is σ = 138612798720. Its totient is φ = 114901259200.

The previous prime is 126726376429. The next prime is 126726376489. The reversal of 126726376447 is 744673627621.

It is a cyclic number.

It is not a de Polignac number, because 126726376447 - 2³¹ = 124578892799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126726376547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8721054 + ... + 8735572.

It is an arithmetic number, because the mean of its divisors is an integer number (8663299920).

Almost surely, 2^126726376447 is an apocalyptic number.

126726376447 is a deficient number, since it is larger than the sum of its proper divisors (11886422273).

126726376447 is a wasteful number, since it uses less digits than its factorization.

126726376447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16574.

The product of its digits is 14224896, while the sum is 55.

The spelling of 126726376447 in words is "one hundred twenty-six billion, seven hundred twenty-six million, three hundred seventy-six thousand, four hundred forty-seven".