5641827818 has 32 divisors (see below), whose sum is σ = 9362304000. Its totient is φ = 2528388720.

The previous prime is 5641827797. The next prime is 5641827827. The reversal of 5641827818 is 8187281465.

It is a super-2 number, since 2×5641827818² = 63660442255917282248, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1491053 + ... + 1494831.

It is an arithmetic number, because the mean of its divisors is an integer number (292572000).

Almost surely, 2^5641827818 is an apocalyptic number.

5641827818 is a deficient number, since it is larger than the sum of its proper divisors (3720476182).

5641827818 is a wasteful number, since it uses less digits than its factorization.

5641827818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730.

The product of its digits is 860160, while the sum is 50.

The square root of 5641827818 is about 75112.1016747634. The cubic root of 5641827818 is about 1780.2183608310.

The spelling of 5641827818 in words is "five billion, six hundred forty-one million, eight hundred twenty-seven thousand, eight hundred eighteen".