8780782885 has 16 divisors (see below), whose sum is σ = 12066967296. Its totient is φ = 6008732928.

The previous prime is 8780782883. The next prime is 8780782889. The reversal of 8780782885 is 5882870878.

It is a cyclic number.

It is not a de Polignac number, because 8780782885 - 2¹ = 8780782883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8780782883) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 240532 + ... + 274621.

It is an arithmetic number, because the mean of its divisors is an integer number (754185456).

Almost surely, 2^8780782885 is an apocalyptic number.

It is an amenable number.

8780782885 is a deficient number, since it is larger than the sum of its proper divisors (3286184411).

8780782885 is a wasteful number, since it uses less digits than its factorization.

8780782885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515652.

The product of its (nonzero) digits is 16056320, while the sum is 61.

The square root of 8780782885 is about 93705.8316488360. The cubic root of 8780782885 is about 2063.0562988424.

The spelling of 8780782885 in words is "eight billion, seven hundred eighty million, seven hundred eighty-two thousand, eight hundred eighty-five".