12653536436 has 6 divisors (see below), whose sum is σ = 22143688770. Its totient is φ = 6326768216.

The previous prime is 12653536429. The next prime is 12653536453. The reversal of 12653536436 is 63463535621.

12653536436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6506035600 + 6147500836 = 80660^2 + 78406^2 .

It is a super-2 number, since 2×12653536436² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1581692051 + ... + 1581692058.

It is an arithmetic number, because the mean of its divisors is an integer number (3690614795).

Almost surely, 2^12653536436 is an apocalyptic number.

It is an amenable number.

12653536436 is a deficient number, since it is larger than the sum of its proper divisors (9490152334).

12653536436 is a wasteful number, since it uses less digits than its factorization.

12653536436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163384113 (or 3163384111 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 44.

The spelling of 12653536436 in words is "twelve billion, six hundred fifty-three million, five hundred thirty-six thousand, four hundred thirty-six".