5711611720 has 32 divisors (see below), whose sum is σ = 13607076600. Its totient is φ = 2150253568.

The previous prime is 5711611681. The next prime is 5711611729. The reversal of 5711611720 is 271161175.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5478072196 + 233539524 = 74014^2 + 15282^2 .

It is not an unprimeable number, because it can be changed into a prime (5711611729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4199035 + ... + 4200394.

Almost surely, 2^5711611720 is an apocalyptic number.

It is an amenable number.

5711611720 is an abundant number, since it is smaller than the sum of its proper divisors (7895464880).

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

5711611720 is a wasteful number, since it uses less digits than its factorization.

5711611720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8399457 (or 8399453 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 31.

The square root of 5711611720 is about 75575.2057225119. The cubic root of 5711611720 is about 1787.5281591730.

Adding to 5711611720 its reverse (271161175), we get a palindrome (5982772895).

The spelling of 5711611720 in words is "five billion, seven hundred eleven million, six hundred eleven thousand, seven hundred twenty".