12267448840 has 16 divisors (see below), whose sum is σ = 27601759980. Its totient is φ = 4906979520.

The previous prime is 12267448811. The next prime is 12267448861. The reversal of 12267448840 is 4884476221.

It can be written as a sum of positive squares in 2 ways, for example, as 11825692516 + 441756324 = 108746^2 + 21018^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153343071 + ... + 153343150.

Almost surely, 2^12267448840 is an apocalyptic number.

12267448840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12267448840 is an abundant number, since it is smaller than the sum of its proper divisors (15334311140).

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

12267448840 is a wasteful number, since it uses less digits than its factorization.

12267448840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306686232 (or 306686228 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 46.

The spelling of 12267448840 in words is "twelve billion, two hundred sixty-seven million, four hundred forty-eight thousand, eight hundred forty".