8426782806 has 64 divisors (see below), whose sum is σ = 18663099840. Its totient is φ = 2520460800.

The previous prime is 8426782789. The next prime is 8426782879. The reversal of 8426782806 is 6082876248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 441256 + ... + 459956.

It is an arithmetic number, because the mean of its divisors is an integer number (291610935).

Almost surely, 2^8426782806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8426782806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9331549920).

8426782806 is an abundant number, since it is smaller than the sum of its proper divisors (10236317034).

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

8426782806 is a wasteful number, since it uses less digits than its factorization.

8426782806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18881.

The product of its (nonzero) digits is 2064384, while the sum is 51.

The square root of 8426782806 is about 91797.5098028264. The cubic root of 8426782806 is about 2034.9508934577.

The spelling of 8426782806 in words is "eight billion, four hundred twenty-six million, seven hundred eighty-two thousand, eight hundred six".