12464322465 has 64 divisors (see below), whose sum is σ = 23566878720. Its totient is φ = 5506844160.

The previous prime is 12464322457. The next prime is 12464322527. The reversal of 12464322465 is 56422346421.

It is a happy number.

It is not a de Polignac number, because 12464322465 - 2³ = 12464322457 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 447106 + ... + 474164.

It is an arithmetic number, because the mean of its divisors is an integer number (368232480).

Almost surely, 2^12464322465 is an apocalyptic number.

12464322465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12464322465 is a deficient number, since it is larger than the sum of its proper divisors (11102556255).

12464322465 is a wasteful number, since it uses less digits than its factorization.

12464322465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27222.

The product of its digits is 276480, while the sum is 39.

Adding to 12464322465 its reverse (56422346421), we get a palindrome (68886668886).

The spelling of 12464322465 in words is "twelve billion, four hundred sixty-four million, three hundred twenty-two thousand, four hundred sixty-five".