12653533436 has 48 divisors (see below), whose sum is σ = 23867477760. Its totient is φ = 5851802880.

The previous prime is 12653533433. The next prime is 12653533441. The reversal of 12653533436 is 63433535621.

It is a super-2 number, since 2×12653533436² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12653533393 and 12653533402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12653533433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564401 + ... + 586391.

It is an arithmetic number, because the mean of its divisors is an integer number (497239120).

Almost surely, 2^12653533436 is an apocalyptic number.

It is an amenable number.

12653533436 is a deficient number, since it is larger than the sum of its proper divisors (11213944324).

12653533436 is a wasteful number, since it uses less digits than its factorization.

12653533436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22194 (or 22192 counting only the distinct ones).

The product of its digits is 583200, while the sum is 41.

The spelling of 12653533436 in words is "twelve billion, six hundred fifty-three million, five hundred thirty-three thousand, four hundred thirty-six".