12625064442 has 24 divisors (see below), whose sum is σ = 27596384244. Its totient is φ = 4171112064.

The previous prime is 12625064393. The next prime is 12625064447. The reversal of 12625064442 is 24446052621.

12625064442 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 5 + 0 + 644 + 4 + 2 = 666.

12625064442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12376340001 + 248724441 = 111249^2 + 15771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12625064397 and 12625064406.

It is not an unprimeable number, because it can be changed into a prime (12625064447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3101473 + ... + 3105540.

Almost surely, 2^12625064442 is an apocalyptic number.

12625064442 is an abundant number, since it is smaller than the sum of its proper divisors (14971319802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12625064442 is a wasteful number, since it uses less digits than its factorization.

12625064442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6207134 (or 6207131 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 12625064442 in words is "twelve billion, six hundred twenty-five million, sixty-four thousand, four hundred forty-two".