12289315787 has 16 divisors (see below), whose sum is σ = 14345496000. Its totient is φ = 10523459520.

The previous prime is 12289315781. The next prime is 12289315789. The reversal of 12289315787 is 78751398221.

It is a de Polignac number, because none of the positive numbers 2^k-12289315787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12289315781) 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, 347039 + ... + 380807.

It is an arithmetic number, because the mean of its divisors is an integer number (896593500).

Almost surely, 2^12289315787 is an apocalyptic number.

12289315787 is a deficient number, since it is larger than the sum of its proper divisors (2056180213).

12289315787 is an equidigital number, since it uses as much as digits as its factorization.

12289315787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34851 (or 34837 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 53.

The spelling of 12289315787 in words is "twelve billion, two hundred eighty-nine million, three hundred fifteen thousand, seven hundred eighty-seven".