12209757276 has 96 divisors (see below), whose sum is σ = 31645555200. Its totient is φ = 3646494720.

The previous prime is 12209757271. The next prime is 12209757281. The reversal of 12209757276 is 67275790221.

It is a happy number.

12209757276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12209757271) and next prime (12209757281).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12209757271) 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 31 ways as a sum of consecutive naturals, for example, 453636 + ... + 479796.

It is an arithmetic number, because the mean of its divisors is an integer number (329641200).

Almost surely, 2^12209757276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12209757276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15822777600).

12209757276 is an abundant number, since it is smaller than the sum of its proper divisors (19435797924).

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

12209757276 is a wasteful number, since it uses less digits than its factorization.

12209757276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26299 (or 26297 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 48.

The spelling of 12209757276 in words is "twelve billion, two hundred nine million, seven hundred fifty-seven thousand, two hundred seventy-six".