12652543436 has 24 divisors (see below), whose sum is σ = 23848602624. Its totient is φ = 5838796800.

The previous prime is 12652543417. The next prime is 12652543439. The reversal of 12652543436 is 63434525621.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12652543393 and 12652543402.

It is not an unprimeable number, because it can be changed into a prime (12652543439) 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 7 ways as a sum of consecutive naturals, for example, 486581 + ... + 511923.

It is an arithmetic number, because the mean of its divisors is an integer number (993691776).

Almost surely, 2^12652543436 is an apocalyptic number.

It is an amenable number.

12652543436 is a deficient number, since it is larger than the sum of its proper divisors (11196059188).

12652543436 is a wasteful number, since it uses less digits than its factorization.

12652543436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34961 (or 34959 counting only the distinct ones).

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

It can be divided in two parts, 126525 and 43436, that added together give a palindrome (169961).

The spelling of 12652543436 in words is "twelve billion, six hundred fifty-two million, five hundred forty-three thousand, four hundred thirty-six".