12387995136 has 360 divisors, whose sum is σ = 41224452984. Its totient is φ = 3551109120.

The previous prime is 12387995129. The next prime is 12387995141. The reversal of 12387995136 is 63159978321.

12387995136 is a `hidden beast` number, since 1 + 2 + 38 + 7 + 99 + 513 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 18298030 + ... + 18298706.

Almost surely, 2^12387995136 is an apocalyptic number.

12387995136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12387995136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20612226492).

12387995136 is an abundant number, since it is smaller than the sum of its proper divisors (28836457848).

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

12387995136 is a wasteful number, since it uses less digits than its factorization.

12387995136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 712 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 12387995136 in words is "twelve billion, three hundred eighty-seven million, nine hundred ninety-five thousand, one hundred thirty-six".