8724688680 has 32 divisors (see below), whose sum is σ = 26174066400. Its totient is φ = 2326583616.

The previous prime is 8724688649. The next prime is 8724688681. The reversal of 8724688680 is 868864278.

It is a happy number.

It is a super-2 number, since 2×8724688680² (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 8724688680.

It is not an unprimeable number, because it can be changed into a prime (8724688681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36352750 + ... + 36352989.

It is an arithmetic number, because the mean of its divisors is an integer number (817939575).

Almost surely, 2^8724688680 is an apocalyptic number.

It is an amenable number.

8724688680 is an abundant number, since it is smaller than the sum of its proper divisors (17449377720).

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

8724688680 is a wasteful number, since it uses less digits than its factorization.

8724688680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72705753 (or 72705749 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 57.

The square root of 8724688680 is about 93406.0419887279. The cubic root of 8724688680 is about 2058.6537752770.

The spelling of 8724688680 in words is "eight billion, seven hundred twenty-four million, six hundred eighty-eight thousand, six hundred eighty".