12464615645 has 16 divisors (see below), whose sum is σ = 15985418688. Its totient is φ = 9297404160.

The previous prime is 12464615641. The next prime is 12464615659. The reversal of 12464615645 is 54651646421.

It is not a de Polignac number, because 12464615645 - 2² = 12464615641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12464615596 and 12464615605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12464615641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676151 + ... + 694340.

It is an arithmetic number, because the mean of its divisors is an integer number (999088668).

Almost surely, 2^12464615645 is an apocalyptic number.

It is an amenable number.

12464615645 is a deficient number, since it is larger than the sum of its proper divisors (3520803043).

12464615645 is a wasteful number, since it uses less digits than its factorization.

12464615645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370620.

The product of its digits is 691200, while the sum is 44.

The spelling of 12464615645 in words is "twelve billion, four hundred sixty-four million, six hundred fifteen thousand, six hundred forty-five".