12267489680 has 80 divisors (see below), whose sum is σ = 30229386624. Its totient is φ = 4613806080.

The previous prime is 12267489677. The next prime is 12267489683. The reversal of 12267489680 is 8698476221.

It is an interprime number because it is at equal distance from previous prime (12267489677) and next prime (12267489683).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (12267489683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1588709 + ... + 1596411.

Almost surely, 2^12267489680 is an apocalyptic number.

12267489680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12267489680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15114693312).

12267489680 is an abundant number, since it is smaller than the sum of its proper divisors (17961896944).

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

12267489680 is a wasteful number, since it uses less digits than its factorization.

12267489680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8904 (or 8898 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 12267489680 in words is "twelve billion, two hundred sixty-seven million, four hundred eighty-nine thousand, six hundred eighty".