718857216 has 264 divisors, whose sum is σ = 2590421184. Its totient is φ = 186531840.

The previous prime is 718857199. The next prime is 718857253. The reversal of 718857216 is 612758817.

It is a happy number.

718857216 is a `hidden beast` number, since 71 + 8 + 8 + 572 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (264).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 709126 + ... + 710138.

Almost surely, 2^718857216 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 718857216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295210592).

718857216 is an abundant number, since it is smaller than the sum of its proper divisors (1871563968).

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

718857216 is a wasteful number, since it uses less digits than its factorization.

718857216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057 (or 1036 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

The square root of 718857216 is about 26811.5127510553. The cubic root of 718857216 is about 895.8065058364.

The spelling of 718857216 in words is "seven hundred eighteen million, eight hundred fifty-seven thousand, two hundred sixteen".