718283664 has 120 divisors (see below), whose sum is σ = 2359581120. Its totient is φ = 199666944.

The previous prime is 718283659. The next prime is 718283689. The reversal of 718283664 is 466382817.

It is a nude number because it is divisible by every one of its digits.

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, 27667 + ... + 46925.

It is an arithmetic number, because the mean of its divisors is an integer number (19663176).

Almost surely, 2^718283664 is an apocalyptic number.

718283664 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718283664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179790560).

718283664 is an abundant number, since it is smaller than the sum of its proper divisors (1641297456).

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

718283664 is a wasteful number, since it uses less digits than its factorization.

718283664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19317 (or 19308 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 718283664 is about 26800.8146144851. The cubic root of 718283664 is about 895.5681978164.

The spelling of 718283664 in words is "seven hundred eighteen million, two hundred eighty-three thousand, six hundred sixty-four".