5711836721 has 8 divisors (see below), whose sum is σ = 5960935680. Its totient is φ = 5462800992.

The previous prime is 5711836693. The next prime is 5711836751. The reversal of 5711836721 is 1276381175.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5711836721 - 2¹⁰ = 5711835697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5711836751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329960 + ... + 346838.

It is an arithmetic number, because the mean of its divisors is an integer number (745116960).

Almost surely, 2^5711836721 is an apocalyptic number.

It is an amenable number.

5711836721 is a deficient number, since it is larger than the sum of its proper divisors (249098959).

5711836721 is a wasteful number, since it uses less digits than its factorization.

5711836721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31615.

The product of its digits is 70560, while the sum is 41.

The square root of 5711836721 is about 75576.6942979117. The cubic root of 5711836721 is about 1787.5516312600.

It can be divided in two parts, 57118 and 36721, that added together give a palindrome (93839).

The spelling of 5711836721 in words is "five billion, seven hundred eleven million, eight hundred thirty-six thousand, seven hundred twenty-one".