5715842730221 has 4 divisors (see below), whose sum is σ = 6155522940252. Its totient is φ = 5276162520192.

The previous prime is 5715842730211. The next prime is 5715842730239. The reversal of 5715842730221 is 1220372485175.

5715842730221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1282771434025 + 4433071296196 = 1132595^2 + 2105486^2 .

It is a cyclic number.

It is not a de Polignac number, because 5715842730221 - 2²² = 5715838535917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5715842730211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219840104996 + ... + 219840105021.

It is an arithmetic number, because the mean of its divisors is an integer number (1538880735063).

Almost surely, 2^{5715842730221} is an apocalyptic number.

It is an amenable number.

5715842730221 is a deficient number, since it is larger than the sum of its proper divisors (439680210031).

5715842730221 is a wasteful number, since it uses less digits than its factorization.

5715842730221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439680210030.

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 5715842730221 in words is "five trillion, seven hundred fifteen billion, eight hundred forty-two million, seven hundred thirty thousand, two hundred twenty-one".