12291580867 has 2 divisors, whose sum is σ = 12291580868. Its totient is φ = 12291580866.

The previous prime is 12291580853. The next prime is 12291580883. The reversal of 12291580867 is 76808519221.

It is a happy number.

12291580867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12291580867 - 2⁷ = 12291580739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12291580867.

It is not a weakly prime, because it can be changed into another prime (12291580837) 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 as a sum of consecutive naturals, namely, 6145790433 + 6145790434.

It is an arithmetic number, because the mean of its divisors is an integer number (6145790434).

Almost surely, 2^12291580867 is an apocalyptic number.

12291580867 is a deficient number, since it is larger than the sum of its proper divisors (1).

12291580867 is an equidigital number, since it uses as much as digits as its factorization.

12291580867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 12291580867 in words is "twelve billion, two hundred ninety-one million, five hundred eighty thousand, eight hundred sixty-seven".