12187549488 has 40 divisors (see below), whose sum is σ = 32853397248. Its totient is φ = 3885884992.

The previous prime is 12187549477. The next prime is 12187549501. The reversal of 12187549488 is 88494578121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5518620 + ... + 5520827.

Almost surely, 2^12187549488 is an apocalyptic number.

It is an amenable number.

12187549488 is an abundant number, since it is smaller than the sum of its proper divisors (20665847760).

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

12187549488 is a wasteful number, since it uses less digits than its factorization.

12187549488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11039481 (or 11039475 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 57.

The spelling of 12187549488 in words is "twelve billion, one hundred eighty-seven million, five hundred forty-nine thousand, four hundred eighty-eight".