12426436499 has 4 divisors (see below), whose sum is σ = 12426689880. Its totient is φ = 12426183120.

The previous prime is 12426436483. The next prime is 12426436523. The reversal of 12426436499 is 99463462421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12426436499 - 2⁴ = 12426436483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12426436469) 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 in 3 ways as a sum of consecutive naturals, for example, 26954 + ... + 159935.

It is an arithmetic number, because the mean of its divisors is an integer number (3106672470).

Almost surely, 2^12426436499 is an apocalyptic number.

12426436499 is a deficient number, since it is larger than the sum of its proper divisors (253381).

12426436499 is an equidigital number, since it uses as much as digits as its factorization.

12426436499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253380.

The product of its digits is 2239488, while the sum is 50.

The spelling of 12426436499 in words is "twelve billion, four hundred twenty-six million, four hundred thirty-six thousand, four hundred ninety-nine".