12026340447 has 16 divisors (see below), whose sum is σ = 18521851392. Its totient is φ = 6859944320.

The previous prime is 12026340439. The next prime is 12026340479. The reversal of 12026340447 is 74404362021.

It is a cyclic number.

It is not a de Polignac number, because 12026340447 - 2³ = 12026340439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12026340497) 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 15 ways as a sum of consecutive naturals, for example, 10718103 + ... + 10719224.

It is an arithmetic number, because the mean of its divisors is an integer number (1157615712).

Almost surely, 2^12026340447 is an apocalyptic number.

12026340447 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12026340447 is a deficient number, since it is larger than the sum of its proper divisors (6495510945).

12026340447 is a wasteful number, since it uses less digits than its factorization.

12026340447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21437358.

The product of its (nonzero) digits is 32256, while the sum is 33.

The spelling of 12026340447 in words is "twelve billion, twenty-six million, three hundred forty thousand, four hundred forty-seven".