12009812048 has 20 divisors (see below), whose sum is σ = 25058935188. Its totient is φ = 5542990080.

The previous prime is 12009812041. The next prime is 12009812053. The reversal of 12009812048 is 84021890021.

It can be written as a sum of positive squares in 2 ways, for example, as 6286586944 + 5723225104 = 79288^2 + 75652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12009811999 and 12009812017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12009812041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28869533 + ... + 28869948.

Almost surely, 2^12009812048 is an apocalyptic number.

It is an amenable number.

12009812048 is an abundant number, since it is smaller than the sum of its proper divisors (13049123140).

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

12009812048 is a wasteful number, since it uses less digits than its factorization.

12009812048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57739502 (or 57739496 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 12009812048 in words is "twelve billion, nine million, eight hundred twelve thousand, forty-eight".