12375518987 has 6 divisors (see below), whose sum is σ = 13400710092. Its totient is φ = 11423555832.

The previous prime is 12375518933. The next prime is 12375518999. The reversal of 12375518987 is 78981557321.

It is not a de Polignac number, because 12375518987 - 2⁸ = 12375518731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12375511987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36613793 + ... + 36614130.

It is an arithmetic number, because the mean of its divisors is an integer number (2233451682).

Almost surely, 2^12375518987 is an apocalyptic number.

12375518987 is a deficient number, since it is larger than the sum of its proper divisors (1025191105).

12375518987 is an equidigital number, since it uses as much as digits as its factorization.

12375518987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73227949 (or 73227936 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 56.

The spelling of 12375518987 in words is "twelve billion, three hundred seventy-five million, five hundred eighteen thousand, nine hundred eighty-seven".