8468646820 has 48 divisors (see below), whose sum is σ = 17938101888. Its totient is φ = 3358246400.

The previous prime is 8468646803. The next prime is 8468646821. The reversal of 8468646820 is 286468648.

It is a super-2 number, since 2×8468646820² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8468646821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1336179 + ... + 1342501.

It is an arithmetic number, because the mean of its divisors is an integer number (373710456).

Almost surely, 2^8468646820 is an apocalyptic number.

It is an amenable number.

8468646820 is an abundant number, since it is smaller than the sum of its proper divisors (9469455068).

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

8468646820 is a wasteful number, since it uses less digits than its factorization.

8468646820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900 (or 6898 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 52.

The square root of 8468646820 is about 92025.2509912361. The cubic root of 8468646820 is about 2038.3151874753.

The spelling of 8468646820 in words is "eight billion, four hundred sixty-eight million, six hundred forty-six thousand, eight hundred twenty".