8387812500 has 192 divisors, whose sum is σ = 25593684480. Its totient is φ = 2134000000.

The previous prime is 8387812487. The next prime is 8387812541. The reversal of 8387812500 is 52187838.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21562306 + ... + 21562694.

It is an arithmetic number, because the mean of its divisors is an integer number (133300440).

Almost surely, 2^8387812500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8387812500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12796842240).

8387812500 is an abundant number, since it is smaller than the sum of its proper divisors (17205871980).

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

8387812500 is an equidigital number, since it uses as much as digits as its factorization.

8387812500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 8387812500 is about 91585.0015013375. The cubic root of 8387812500 is about 2031.8091163020.

The spelling of 8387812500 in words is "eight billion, three hundred eighty-seven million, eight hundred twelve thousand, five hundred".