5818883681 has 4 divisors (see below), whose sum is σ = 6266490132. Its totient is φ = 5371277232.

The previous prime is 5818883663. The next prime is 5818883683. The reversal of 5818883681 is 1863888185.

It is a happy number.

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 474542656 + 5344341025 = 21784^2 + 73105^2 .

It is a cyclic number.

It is not a de Polignac number, because 5818883681 - 2²⁶ = 5751774817 is a prime.

It is a super-2 number, since 2×5818883681² = 67718814586016219522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5818883683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223803206 + ... + 223803231.

It is an arithmetic number, because the mean of its divisors is an integer number (1566622533).

Almost surely, 2^5818883681 is an apocalyptic number.

It is an amenable number.

5818883681 is a deficient number, since it is larger than the sum of its proper divisors (447606451).

5818883681 is a wasteful number, since it uses less digits than its factorization.

5818883681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447606450.

The product of its digits is 2949120, while the sum is 56.

The square root of 5818883681 is about 76281.6077504925. The cubic root of 5818883681 is about 1798.6495715756.

The spelling of 5818883681 in words is "five billion, eight hundred eighteen million, eight hundred eighty-three thousand, six hundred eighty-one".