12078449599 has 2 divisors, whose sum is σ = 12078449600. Its totient is φ = 12078449598.

The previous prime is 12078449557. The next prime is 12078449633. The reversal of 12078449599 is 99594487021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12078449599 - 2¹¹ = 12078447551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12078449519) 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, 6039224799 + 6039224800.

It is an arithmetic number, because the mean of its divisors is an integer number (6039224800).

Almost surely, 2^12078449599 is an apocalyptic number.

12078449599 is a deficient number, since it is larger than the sum of its proper divisors (1).

12078449599 is an equidigital number, since it uses as much as digits as its factorization.

12078449599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 12078449599 in words is "twelve billion, seventy-eight million, four hundred forty-nine thousand, five hundred ninety-nine".