5771656817 has 8 divisors (see below), whose sum is σ = 5880395880. Its totient is φ = 5663929600.

The previous prime is 5771656727. The next prime is 5771656831. The reversal of 5771656817 is 7186561775.

It can be written as a sum of positive squares in 4 ways, for example, as 146506816 + 5625150001 = 12104^2 + 75001^2 .

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 5771656817 - 2¹² = 5771652721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5771656117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241442 + ... + 264267.

It is an arithmetic number, because the mean of its divisors is an integer number (735049485).

Almost surely, 2^5771656817 is an apocalyptic number.

It is an amenable number.

5771656817 is a deficient number, since it is larger than the sum of its proper divisors (108739063).

5771656817 is a wasteful number, since it uses less digits than its factorization.

5771656817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505923.

The product of its digits is 2469600, while the sum is 53.

The square root of 5771656817 is about 75971.4210542359. The cubic root of 5771656817 is about 1793.7703179527.

The spelling of 5771656817 in words is "five billion, seven hundred seventy-one million, six hundred fifty-six thousand, eight hundred seventeen".