12424640565613 has 4 divisors (see below), whose sum is σ = 12424661843868. Its totient is φ = 12424619287360.

The previous prime is 12424640565611. The next prime is 12424640565691. The reversal of 12424640565613 is 31656504642421.

12424640565613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9137301703209 + 3287338862404 = 3022797^2 + 1813102^2 .

It is a cyclic number.

It is not a de Polignac number, because 12424640565613 - 2¹ = 12424640565611 is a prime.

It is a super-2 number, since 2×12424640565613² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12424640565611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9737806 + ... + 10939567.

It is an arithmetic number, because the mean of its divisors is an integer number (3106165460967).

Almost surely, 2^{12424640565613} is an apocalyptic number.

It is an amenable number.

12424640565613 is a deficient number, since it is larger than the sum of its proper divisors (21278255).

12424640565613 is an equidigital number, since it uses as much as digits as its factorization.

12424640565613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21278254.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 12424640565613 in words is "twelve trillion, four hundred twenty-four billion, six hundred forty million, five hundred sixty-five thousand, six hundred thirteen".