8688140220 has 48 divisors (see below), whose sum is σ = 24442121088. Its totient is φ = 2305853760.

The previous prime is 8688140213. The next prime is 8688140273. The reversal of 8688140220 is 220418868.

It is a congruent number.

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, 330474 + ... + 355793.

It is an arithmetic number, because the mean of its divisors is an integer number (509210856).

Almost surely, 2^8688140220 is an apocalyptic number.

It is an amenable number.

8688140220 is an abundant number, since it is smaller than the sum of its proper divisors (15753980868).

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

8688140220 is a wasteful number, since it uses less digits than its factorization.

8688140220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686490 (or 686488 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 8688140220 is about 93210.1937558334. The cubic root of 8688140220 is about 2055.7751268714.

The spelling of 8688140220 in words is "eight billion, six hundred eighty-eight million, one hundred forty thousand, two hundred twenty".