8669378820 has 96 divisors (see below), whose sum is σ = 25721998848. Its totient is φ = 2174164992.

The previous prime is 8669378819. The next prime is 8669378827. The reversal of 8669378820 is 288739668.

It is not an unprimeable number, because it can be changed into a prime (8669378827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1810149 + ... + 1814931.

It is an arithmetic number, because the mean of its divisors is an integer number (267937488).

Almost surely, 2^8669378820 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 8669378820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12860999424).

8669378820 is an abundant number, since it is smaller than the sum of its proper divisors (17052620028).

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

8669378820 is a wasteful number, since it uses less digits than its factorization.

8669378820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6589 (or 6587 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The square root of 8669378820 is about 93109.4990857539. The cubic root of 8669378820 is about 2054.2942953660.

The spelling of 8669378820 in words is "eight billion, six hundred sixty-nine million, three hundred seventy-eight thousand, eight hundred twenty".