8787771260928 has 912 divisors, whose sum is σ = 29632533468160. Its totient is φ = 2569273344000.

The previous prime is 8787771260923. The next prime is 8787771260941. The reversal of 8787771260928 is 8290621777878.

8787771260928 is a `hidden beast` number, since 8 + 7 + 8 + 7 + 7 + 7 + 1 + 2 + 609 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8787771260923) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26549157723 + ... + 26549158053.

Almost surely, 2^{8787771260928} is an apocalyptic number.

8787771260928 is a gapful number since it is divisible by the number (88) 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 8787771260928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14816266734080).

8787771260928 is an abundant number, since it is smaller than the sum of its proper divisors (20844762207232).

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

8787771260928 is an equidigital number, since it uses as much as digits as its factorization.

8787771260928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 265531392, while the sum is 72.

The spelling of 8787771260928 in words is "eight trillion, seven hundred eighty-seven billion, seven hundred seventy-one million, two hundred sixty thousand, nine hundred twenty-eight".