12523606544 has 10 divisors (see below), whose sum is σ = 24264487710. Its totient is φ = 6261803264.

The previous prime is 12523606523. The next prime is 12523606573. The reversal of 12523606544 is 44560632521.

It can be written as a sum of positive squares in only one way, i.e., 7445618944 + 5077987600 = 86288^2 + 71260^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12523606498 and 12523606507.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391362689 + ... + 391362720.

It is an arithmetic number, because the mean of its divisors is an integer number (2426448771).

Almost surely, 2^12523606544 is an apocalyptic number.

It is an amenable number.

12523606544 is a deficient number, since it is larger than the sum of its proper divisors (11740881166).

12523606544 is an equidigital number, since it uses as much as digits as its factorization.

12523606544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782725417 (or 782725411 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 12523606544 in words is "twelve billion, five hundred twenty-three million, six hundred six thousand, five hundred forty-four".