12142478536 has 16 divisors (see below), whose sum is σ = 23501571840. Its totient is φ = 5875392720.

The previous prime is 12142478521. The next prime is 12142478549. The reversal of 12142478536 is 63587424121.

It is a junction number, because it is equal to n+sod(n) for n = 12142478492 and 12142478501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24480556 + ... + 24481051.

It is an arithmetic number, because the mean of its divisors is an integer number (1468848240).

Almost surely, 2^12142478536 is an apocalyptic number.

It is an amenable number.

12142478536 is a deficient number, since it is larger than the sum of its proper divisors (11359093304).

12142478536 is a wasteful number, since it uses less digits than its factorization.

12142478536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48961644 (or 48961640 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The spelling of 12142478536 in words is "twelve billion, one hundred forty-two million, four hundred seventy-eight thousand, five hundred thirty-six".