126864536633999 has 2 divisors, whose sum is σ = 126864536634000. Its totient is φ = 126864536633998.

The previous prime is 126864536633909. The next prime is 126864536634007. The reversal of 126864536633999 is 999336635468621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126864536633999 is a prime.

It is a super-2 number, since 2×126864536633999² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126864536633909) 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 as a sum of consecutive naturals, namely, 63432268316999 + 63432268317000.

It is an arithmetic number, because the mean of its divisors is an integer number (63432268317000).

Almost surely, 2^{126864536633999} is an apocalyptic number.

126864536633999 is a deficient number, since it is larger than the sum of its proper divisors (1).

126864536633999 is an equidigital number, since it uses as much as digits as its factorization.

126864536633999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8162933760, while the sum is 80.

The spelling of 126864536633999 in words is "one hundred twenty-six trillion, eight hundred sixty-four billion, five hundred thirty-six million, six hundred thirty-three thousand, nine hundred ninety-nine".