716927984656 has 135 divisors (see below), whose sum is σ = 1589302108791. Its totient is φ = 313108803072.

The previous prime is 716927984651. The next prime is 716927984693. The reversal of 716927984656 is 656489729617.

It is a happy number.

The square root of 716927984656 is 846716.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 10386871056 + 706541113600 = 101916^2 + 840560^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716927984651) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 836554980 + ... + 836555836.

Almost surely, 2^716927984656 is an apocalyptic number.

716927984656 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

716927984656 is the 846716-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 716927984656

716927984656 is an abundant number, since it is smaller than the sum of its proper divisors (872374124135).

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

716927984656 is an equidigital number, since it uses as much as digits as its factorization.

716927984656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786 (or 891 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 70.

The spelling of 716927984656 in words is "seven hundred sixteen billion, nine hundred twenty-seven million, nine hundred eighty-four thousand, six hundred fifty-six".