5721216712 has 8 divisors (see below), whose sum is σ = 10727281350. Its totient is φ = 2860608352.

The previous prime is 5721216701. The next prime is 5721216713. The reversal of 5721216712 is 2176121275.

It can be written as a sum of positive squares in only one way, i.e., 4761828036 + 959388676 = 69006^2 + 30974^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (5721216713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357576037 + ... + 357576052.

Almost surely, 2^5721216712 is an apocalyptic number.

It is an amenable number.

5721216712 is a deficient number, since it is larger than the sum of its proper divisors (5006064638).

5721216712 is a wasteful number, since it uses less digits than its factorization.

5721216712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715152095 (or 715152091 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 5721216712 is about 75638.7249495918. The cubic root of 5721216712 is about 1788.5296032043.

Adding to 5721216712 its reverse (2176121275), we get a palindrome (7897337987).

The spelling of 5721216712 in words is "five billion, seven hundred twenty-one million, two hundred sixteen thousand, seven hundred twelve".