12387631896 has 48 divisors (see below), whose sum is σ = 33611956560. Its totient is φ = 4121565120.

The previous prime is 12387631849. The next prime is 12387631897. The reversal of 12387631896 is 69813678321.

12387631896 is a `hidden beast` number, since 1 + 238 + 7 + 6 + 318 + 96 = 666.

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 11 ways as a sum of consecutive naturals, for example, 120060 + ... + 197963.

It is an arithmetic number, because the mean of its divisors is an integer number (700249095).

Almost surely, 2^12387631896 is an apocalyptic number.

It is an amenable number.

12387631896 is an abundant number, since it is smaller than the sum of its proper divisors (21224324664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12387631896 is a wasteful number, since it uses less digits than its factorization.

12387631896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318576 (or 318569 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 12387631896 in words is "twelve billion, three hundred eighty-seven million, six hundred thirty-one thousand, eight hundred ninety-six".