8219878220 has 24 divisors (see below), whose sum is σ = 17263565424. Its totient is φ = 3287604416.

The previous prime is 8219878213. The next prime is 8219878223. The reversal of 8219878220 is 228789128.

It is not an unprimeable number, because it can be changed into a prime (8219878223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265259 + ... + 294621.

It is an arithmetic number, because the mean of its divisors is an integer number (719315226).

Almost surely, 2^8219878220 is an apocalyptic number.

It is an amenable number.

8219878220 is an abundant number, since it is smaller than the sum of its proper divisors (9043687204).

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

8219878220 is a wasteful number, since it uses less digits than its factorization.

8219878220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43369 (or 43367 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 8219878220 is about 90663.5440516198. The cubic root of 8219878220 is about 2018.1578326597.

The spelling of 8219878220 in words is "eight billion, two hundred nineteen million, eight hundred seventy-eight thousand, two hundred twenty".