12730428043834 has 8 divisors (see below), whose sum is σ = 19357226203860. Its totient is φ = 6278019309216.

The previous prime is 12730428043831. The next prime is 12730428043847. The reversal of 12730428043834 is 43834082403721.

It can be written as a sum of positive squares in 2 ways, for example, as 12556059163209 + 174368880625 = 3543453^2 + 417575^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12730428043831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43597356169 + ... + 43597356460.

Almost surely, 2^{12730428043834} is an apocalyptic number.

12730428043834 is a deficient number, since it is larger than the sum of its proper divisors (6626798160026).

12730428043834 is an equidigital number, since it uses as much as digits as its factorization.

12730428043834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87194712704.

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 12730428043834 in words is "twelve trillion, seven hundred thirty billion, four hundred twenty-eight million, forty-three thousand, eight hundred thirty-four".