8278996806 has 48 divisors (see below), whose sum is σ = 18961113600. Its totient is φ = 2603455344.

The previous prime is 8278996751. The next prime is 8278996807. The reversal of 8278996806 is 6086998728.

It is a super-2 number, since 2×8278996806² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8278996807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31095 + ... + 132381.

It is an arithmetic number, because the mean of its divisors is an integer number (395023200).

Almost surely, 2^8278996806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8278996806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9480556800).

8278996806 is an abundant number, since it is smaller than the sum of its proper divisors (10682116794).

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

8278996806 is a wasteful number, since it uses less digits than its factorization.

8278996806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101553 (or 101550 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The square root of 8278996806 is about 90988.9927738515. The cubic root of 8278996806 is about 2022.9845765749.

The spelling of 8278996806 in words is "eight billion, two hundred seventy-eight million, nine hundred ninety-six thousand, eight hundred six".