8686954820 has 12 divisors (see below), whose sum is σ = 18242605164. Its totient is φ = 3474781920.

The previous prime is 8686954817. The next prime is 8686954841. The reversal of 8686954820 is 284596868.

It can be written as a sum of positive squares in 2 ways, for example, as 2314764544 + 6372190276 = 48112^2 + 79826^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217173851 + ... + 217173890.

It is an arithmetic number, because the mean of its divisors is an integer number (1520217097).

Almost surely, 2^8686954820 is an apocalyptic number.

It is an amenable number.

8686954820 is an abundant number, since it is smaller than the sum of its proper divisors (9555650344).

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

8686954820 is a wasteful number, since it uses less digits than its factorization.

8686954820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434347750 (or 434347748 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 56.

The square root of 8686954820 is about 93203.8347923518. The cubic root of 8686954820 is about 2055.6816267432.

The spelling of 8686954820 in words is "eight billion, six hundred eighty-six million, nine hundred fifty-four thousand, eight hundred twenty".