8787861504 has 224 divisors, whose sum is σ = 26469685440. Its totient is φ = 2880700416.

The previous prime is 8787861491. The next prime is 8787861517. The reversal of 8787861504 is 4051687878.

It is a happy number.

8787861504 is a `hidden beast` number, since 8 + 7 + 8 + 78 + 61 + 504 = 666.

It is an interprime number because it is at equal distance from previous prime (8787861491) and next prime (8787861517).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14819032 + ... + 14819624.

Almost surely, 2^8787861504 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 8787861504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13234842720).

8787861504 is an abundant number, since it is smaller than the sum of its proper divisors (17681823936).

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

8787861504 is an equidigital number, since it uses as much as digits as its factorization.

8787861504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The square root of 8787861504 is about 93743.5944691689. The cubic root of 8787861504 is about 2063.6105268362.

The spelling of 8787861504 in words is "eight billion, seven hundred eighty-seven million, eight hundred sixty-one thousand, five hundred four".