5771656819 has 4 divisors (see below), whose sum is σ = 5815715400. Its totient is φ = 5727598240.

The previous prime is 5771656727. The next prime is 5771656831. The reversal of 5771656819 is 9186561775.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5771656819 - 2²³ = 5763268211 is a prime.

It is a super-2 number, since 2×5771656819² = 66624044872618397522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5771656819.

It is not an unprimeable number, because it can be changed into a prime (5771656019) 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, 22029094 + ... + 22029355.

It is an arithmetic number, because the mean of its divisors is an integer number (1453928850).

Almost surely, 2^5771656819 is an apocalyptic number.

5771656819 is a deficient number, since it is larger than the sum of its proper divisors (44058581).

5771656819 is a wasteful number, since it uses less digits than its factorization.

5771656819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44058580.

The product of its digits is 3175200, while the sum is 55.

The square root of 5771656819 is about 75971.4210673988. The cubic root of 5771656819 is about 1793.7703181599.

The spelling of 5771656819 in words is "five billion, seven hundred seventy-one million, six hundred fifty-six thousand, eight hundred nineteen".