6718678240 has 96 divisors (see below), whose sum is σ = 16628976000. Its totient is φ = 2561814528.

The previous prime is 6718678229. The next prime is 6718678243. The reversal of 6718678240 is 428768176.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6718678243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357396 + ... + 375724.

It is an arithmetic number, because the mean of its divisors is an integer number (173218500).

Almost surely, 2^6718678240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6718678240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8314488000).

6718678240 is an abundant number, since it is smaller than the sum of its proper divisors (9910297760).

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

6718678240 is a wasteful number, since it uses less digits than its factorization.

6718678240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18452 (or 18444 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 6718678240 is about 81967.5438207099. The cubic root of 6718678240 is about 1886.9538606173.

The spelling of 6718678240 in words is "six billion, seven hundred eighteen million, six hundred seventy-eight thousand, two hundred forty".