12078645841 has 8 divisors (see below), whose sum is σ = 12519714600. Its totient is φ = 11639214720.

The previous prime is 12078645811. The next prime is 12078645871. The reversal of 12078645841 is 14854687021.

12078645841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12078645811) and next prime (12078645871).

It can be written as a sum of positive squares in 4 ways, for example, as 7009205841 + 5069440000 = 83721^2 + 71200^2 .

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 12078645841 - 2⁹ = 12078645329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12078645791 and 12078645800.

It is not an unprimeable number, because it can be changed into a prime (12078645811) 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 7 ways as a sum of consecutive naturals, for example, 394380 + ... + 423901.

It is an arithmetic number, because the mean of its divisors is an integer number (1564964325).

Almost surely, 2^12078645841 is an apocalyptic number.

It is an amenable number.

12078645841 is a deficient number, since it is larger than the sum of its proper divisors (441068759).

12078645841 is an equidigital number, since it uses as much as digits as its factorization.

12078645841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818819.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 12078645841 in words is "twelve billion, seventy-eight million, six hundred forty-five thousand, eight hundred forty-one".