8320829872 has 20 divisors (see below), whose sum is σ = 16677526320. Its totient is φ = 4016952128.

The previous prime is 8320829863. The next prime is 8320829879. The reversal of 8320829872 is 2789280238.

It is not an unprimeable number, because it can be changed into a prime (8320829879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8965948 + ... + 8966875.

It is an arithmetic number, because the mean of its divisors is an integer number (833876316).

Almost surely, 2^8320829872 is an apocalyptic number.

It is an amenable number.

8320829872 is an abundant number, since it is smaller than the sum of its proper divisors (8356696448).

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

8320829872 is a wasteful number, since it uses less digits than its factorization.

8320829872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17932860 (or 17932854 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 8320829872 is about 91218.5829313304. The cubic root of 8320829872 is about 2026.3861766041.

The spelling of 8320829872 in words is "eight billion, three hundred twenty million, eight hundred twenty-nine thousand, eight hundred seventy-two".