12387631904 has 24 divisors (see below), whose sum is σ = 24394973148. Its totient is φ = 6192083200.

The previous prime is 12387631901. The next prime is 12387631969. The reversal of 12387631904 is 40913678321.

It can be written as a sum of positive squares in 2 ways, for example, as 12139632400 + 247999504 = 110180^2 + 15748^2 .

It is not an unprimeable number, because it can be changed into a prime (12387631901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66134 + ... + 170730.

Almost surely, 2^12387631904 is an apocalyptic number.

It is an amenable number.

12387631904 is a deficient number, since it is larger than the sum of its proper divisors (12007341244).

12387631904 is a wasteful number, since it uses less digits than its factorization.

12387631904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108308 (or 108300 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 12387631904 in words is "twelve billion, three hundred eighty-seven million, six hundred thirty-one thousand, nine hundred four".