126223537747999 has 8 divisors (see below), whose sum is σ = 130427813394432. Its totient is φ = 122027546390520.

The previous prime is 126223537747997. The next prime is 126223537748083. The reversal of 126223537747999 is 999747735322621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126223537747999 - 2¹ = 126223537747997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126223537747997) 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 7 ways as a sum of consecutive naturals, for example, 2071041259 + ... + 2071102204.

It is an arithmetic number, because the mean of its divisors is an integer number (16303476674304).

Almost surely, 2^{126223537747999} is an apocalyptic number.

126223537747999 is a deficient number, since it is larger than the sum of its proper divisors (4204275646433).

126223537747999 is an equidigital number, since it uses as much as digits as its factorization.

126223537747999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142144477.

The product of its digits is 2160406080, while the sum is 76.

The spelling of 126223537747999 in words is "one hundred twenty-six trillion, two hundred twenty-three billion, five hundred thirty-seven million, seven hundred forty-seven thousand, nine hundred ninety-nine".