12387631895 has 8 divisors (see below), whose sum is σ = 14865889920. Its totient is φ = 9909617760.

The previous prime is 12387631849. The next prime is 12387631897. The reversal of 12387631895 is 59813678321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12387631895 - 2²⁶ = 12320523031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12387631897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80705 + ... + 176885.

It is an arithmetic number, because the mean of its divisors is an integer number (1858236240).

Almost surely, 2^12387631895 is an apocalyptic number.

12387631895 is a deficient number, since it is larger than the sum of its proper divisors (2478258025).

12387631895 is an equidigital number, since it uses as much as digits as its factorization.

12387631895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121945.

The product of its digits is 2177280, while the sum is 53.

The spelling of 12387631895 in words is "twelve billion, three hundred eighty-seven million, six hundred thirty-one thousand, eight hundred ninety-five".