8328123820 has 48 divisors (see below), whose sum is σ = 18548687808. Its totient is φ = 3134165760.

The previous prime is 8328123809. The next prime is 8328123823. The reversal of 8328123820 is 283218238.

It is a super-2 number, since 2×8328123820² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8328123820.

It is not an unprimeable number, because it can be changed into a prime (8328123823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120339 + ... + 176458.

It is an arithmetic number, because the mean of its divisors is an integer number (386430996).

Almost surely, 2^8328123820 is an apocalyptic number.

It is an amenable number.

8328123820 is an abundant number, since it is smaller than the sum of its proper divisors (10220563988).

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

8328123820 is a wasteful number, since it uses less digits than its factorization.

8328123820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296890 (or 296888 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 8328123820 is about 91258.5547770728. The cubic root of 8328123820 is about 2026.9781062940.

The spelling of 8328123820 in words is "eight billion, three hundred twenty-eight million, one hundred twenty-three thousand, eight hundred twenty".