5712718021 has 2 divisors, whose sum is σ = 5712718022. Its totient is φ = 5712718020.

The previous prime is 5712717991. The next prime is 5712718031. The reversal of 5712718021 is 1208172175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4775501025 + 937216996 = 69105^2 + 30614^2 .

It is a cyclic number.

It is not a de Polignac number, because 5712718021 - 2¹⁹ = 5712193733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5712718031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2856359010 + 2856359011.

It is an arithmetic number, because the mean of its divisors is an integer number (2856359011).

Almost surely, 2^5712718021 is an apocalyptic number.

It is an amenable number.

5712718021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5712718021 is an equidigital number, since it uses as much as digits as its factorization.

5712718021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 34.

The square root of 5712718021 is about 75582.5245741368. The cubic root of 5712718021 is about 1787.6435624731.

The spelling of 5712718021 in words is "five billion, seven hundred twelve million, seven hundred eighteen thousand, twenty-one".