9678385220 has 48 divisors (see below), whose sum is σ = 23233851648. Its totient is φ = 3317485440.

The previous prime is 9678385217. The next prime is 9678385253. The reversal of 9678385220 is 225838769.

It is a super-2 number, since 2×9678385220² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926225 + ... + 936615.

It is an arithmetic number, because the mean of its divisors is an integer number (484038576).

Almost surely, 2^9678385220 is an apocalyptic number.

It is an amenable number.

9678385220 is an abundant number, since it is smaller than the sum of its proper divisors (13555466428).

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

9678385220 is a wasteful number, since it uses less digits than its factorization.

9678385220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17060 (or 17058 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 9678385220 is about 98378.7843998898. The cubic root of 9678385220 is about 2131.0859605257.

The spelling of 9678385220 in words is "nine billion, six hundred seventy-eight million, three hundred eighty-five thousand, two hundred twenty".