12576042641 has 2 divisors, whose sum is σ = 12576042642. Its totient is φ = 12576042640.

The previous prime is 12576042637. The next prime is 12576042667. The reversal of 12576042641 is 14624067521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10749335041 + 1826707600 = 103679^2 + 42740^2 .

It is a cyclic number.

It is not a de Polignac number, because 12576042641 - 2² = 12576042637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12576042595 and 12576042604.

It is not a weakly prime, because it can be changed into another prime (12576042671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6288021320 + 6288021321.

It is an arithmetic number, because the mean of its divisors is an integer number (6288021321).

Almost surely, 2^12576042641 is an apocalyptic number.

It is an amenable number.

12576042641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12576042641 is an equidigital number, since it uses as much as digits as its factorization.

12576042641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 12576042641 in words is "twelve billion, five hundred seventy-six million, forty-two thousand, six hundred forty-one".