711211680 has 72 divisors (see below), whose sum is σ = 2427014772. Its totient is φ = 189656064.

The previous prime is 711211673. The next prime is 711211691. The reversal of 711211680 is 86112117.

It can be written as a sum of positive squares in 2 ways, for example, as 701402256 + 9809424 = 26484^2 + 3132^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245509 + ... + 248388.

Almost surely, 2^711211680 is an apocalyptic number.

It is an amenable number.

711211680 is an abundant number, since it is smaller than the sum of its proper divisors (1715803092).

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

711211680 is a wasteful number, since it uses less digits than its factorization.

711211680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493918 (or 493907 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The square root of 711211680 is about 26668.5522666679. The cubic root of 711211680 is about 892.6193423728.

Adding to 711211680 its reverse (86112117), we get a palindrome (797323797).

The spelling of 711211680 in words is "seven hundred eleven million, two hundred eleven thousand, six hundred eighty".