12345444005 has 32 divisors (see below), whose sum is σ = 15560633088. Its totient is φ = 9384883200.

The previous prime is 12345443989. The next prime is 12345444017. The reversal of 12345444005 is 50044454321.

It is not a de Polignac number, because 12345444005 - 2⁴ = 12345443989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 17865710 + ... + 17866400.

It is an arithmetic number, because the mean of its divisors is an integer number (486269784).

Almost surely, 2^12345444005 is an apocalyptic number.

It is an amenable number.

12345444005 is a deficient number, since it is larger than the sum of its proper divisors (3215189083).

12345444005 is a wasteful number, since it uses less digits than its factorization.

12345444005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 12345444005 its reverse (50044454321), we get a palindrome (62389898326).

The spelling of 12345444005 in words is "twelve billion, three hundred forty-five million, four hundred forty-four thousand, five".