12009850000 has 60 divisors (see below), whose sum is σ = 29084615028. Its totient is φ = 4803920000.

The previous prime is 12009849983. The next prime is 12009850003. The reversal of 12009850000 is 5890021.

12009850000 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 6 ways, for example, as 7837206784 + 4172643216 = 88528^2 + 64596^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12009850003) 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, 70099 + ... + 170098.

Almost surely, 2^12009850000 is an apocalyptic number.

12009850000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12009850000 is an abundant number, since it is smaller than the sum of its proper divisors (17074765028).

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

12009850000 is an frugal number, since it uses more digits than its factorization.

12009850000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240230 (or 240204 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 12009850000 in words is "twelve billion, nine million, eight hundred fifty thousand".