8211329880 has 256 divisors, whose sum is σ = 27345669120. Its totient is φ = 1959745536.

The previous prime is 8211329869. The next prime is 8211329881. The reversal of 8211329880 is 889231128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8211329881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11201994 + ... + 11202726.

It is an arithmetic number, because the mean of its divisors is an integer number (106819020).

Almost surely, 2^8211329880 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 8211329880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13672834560).

8211329880 is an abundant number, since it is smaller than the sum of its proper divisors (19134339240).

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

8211329880 is a wasteful number, since it uses less digits than its factorization.

8211329880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 966 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 8211329880 is about 90616.3885839642. The cubic root of 8211329880 is about 2017.4579892334.

The spelling of 8211329880 in words is "eight billion, two hundred eleven million, three hundred twenty-nine thousand, eight hundred eighty".