12387262500 has 432 divisors, whose sum is σ = 42977249280. Its totient is φ = 3084480000.

The previous prime is 12387262499. The next prime is 12387262579. The reversal of 12387262500 is 526278321.

12387262500 is a `hidden beast` number, since 1 + 2 + 387 + 26 + 250 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 143 ways as a sum of consecutive naturals, for example, 97537437 + ... + 97537563.

Almost surely, 2^12387262500 is an apocalyptic number.

12387262500 is a gapful number since it is divisible by the number (10) 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 12387262500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21488624640).

12387262500 is an abundant number, since it is smaller than the sum of its proper divisors (30589986780).

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

12387262500 is a wasteful number, since it uses less digits than its factorization.

12387262500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 12387262500 in words is "twelve billion, three hundred eighty-seven million, two hundred sixty-two thousand, five hundred".