12653536424 has 32 divisors (see below), whose sum is σ = 25132657320. Its totient is φ = 5951840256.

The previous prime is 12653536397. The next prime is 12653536429. The reversal of 12653536424 is 42463535621.

It can be written as a sum of positive squares in 4 ways, for example, as 12428236324 + 225300100 = 111482^2 + 15010^2 .

It is a super-2 number, since 2×12653536424² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12653536429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288662 + ... + 329594.

Almost surely, 2^12653536424 is an apocalyptic number.

It is an amenable number.

12653536424 is a deficient number, since it is larger than the sum of its proper divisors (12479120896).

12653536424 is a wasteful number, since it uses less digits than its factorization.

12653536424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43229 (or 43225 counting only the distinct ones).

The product of its digits is 518400, while the sum is 41.

The spelling of 12653536424 in words is "twelve billion, six hundred fifty-three million, five hundred thirty-six thousand, four hundred twenty-four".