8718340840 has 64 divisors (see below), whose sum is σ = 21414792960. Its totient is φ = 3168049920.

The previous prime is 8718340837. The next prime is 8718340853. The reversal of 8718340840 is 480438178.

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, 690262 + ... + 702778.

It is an arithmetic number, because the mean of its divisors is an integer number (334606140).

Almost surely, 2^8718340840 is an apocalyptic number.

It is an amenable number.

8718340840 is an abundant number, since it is smaller than the sum of its proper divisors (12696452120).

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

8718340840 is a wasteful number, since it uses less digits than its factorization.

8718340840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14122 (or 14118 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 8718340840 is about 93372.0559910726. The cubic root of 8718340840 is about 2058.1543811306.

The spelling of 8718340840 in words is "eight billion, seven hundred eighteen million, three hundred forty thousand, eight hundred forty".