12442872518452 has 192 divisors, whose sum is σ = 25175932185600. Its totient is φ = 5347723673600.

The previous prime is 12442872518441. The next prime is 12442872518471. The reversal of 12442872518452 is 25481527824421.

It is a happy number.

It is a super-3 number, since 3×12442872518452³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12442872518393 and 12442872518402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 623724174 + ... + 623744122.

It is an arithmetic number, because the mean of its divisors is an integer number (131124646800).

Almost surely, 2^{12442872518452} is an apocalyptic number.

It is an amenable number.

12442872518452 is an abundant number, since it is smaller than the sum of its proper divisors (12733059667148).

12442872518452 is a wasteful number, since it uses less digits than its factorization.

12442872518452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20242 (or 20240 counting only the distinct ones).

The product of its digits is 11468800, while the sum is 55.

The spelling of 12442872518452 in words is "twelve trillion, four hundred forty-two billion, eight hundred seventy-two million, five hundred eighteen thousand, four hundred fifty-two".