It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-126531444635 is a prime.
It is a Duffinian number.
It is an unprimeable number.
Almost surely, 2126531444635 is an apocalyptic number.
126531444635 is a wasteful number, since it uses less digits than its factorization.
126531444635 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1488605253.
The spelling of 126531444635 in words is "one hundred twenty-six billion, five hundred thirty-one million, four hundred forty-four thousand, six hundred thirty-five".