12484331987 has 4 divisors (see below), whose sum is σ = 12568119600. Its totient is φ = 12400544376.

The previous prime is 12484331983. The next prime is 12484332011. The reversal of 12484331987 is 78913348421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12484331987 - 2² = 12484331983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12484331983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41893583 + ... + 41893880.

It is an arithmetic number, because the mean of its divisors is an integer number (3142029900).

Almost surely, 2^12484331987 is an apocalyptic number.

12484331987 is a deficient number, since it is larger than the sum of its proper divisors (83787613).

12484331987 is an equidigital number, since it uses as much as digits as its factorization.

12484331987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83787612.

The product of its digits is 1161216, while the sum is 50.

The spelling of 12484331987 in words is "twelve billion, four hundred eighty-four million, three hundred thirty-one thousand, nine hundred eighty-seven".