718168688 has 40 divisors (see below), whose sum is σ = 1468693200. Its totient is φ = 339254784.

The previous prime is 718168687. The next prime is 718168691. The reversal of 718168688 is 886861817.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718168687) 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, 115220 + ... + 121292.

It is an arithmetic number, because the mean of its divisors is an integer number (36717330).

Almost surely, 2^718168688 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 718168688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734346600).

718168688 is an abundant number, since it is smaller than the sum of its proper divisors (750524512).

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

718168688 is a wasteful number, since it uses less digits than its factorization.

718168688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489 (or 6483 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 53.

The square root of 718168688 is about 26798.6695192131. The cubic root of 718168688 is about 895.5204105940.

The spelling of 718168688 in words is "seven hundred eighteen million, one hundred sixty-eight thousand, six hundred eighty-eight".