5561805843 has 32 divisors (see below), whose sum is σ = 9006681600. Its totient is φ = 3364077600.

The previous prime is 5561805787. The next prime is 5561805853. The reversal of 5561805843 is 3485081655.

5561805843 is a `hidden beast` number, since 5 + 5 + 61 + 8 + 0 + 584 + 3 = 666.

It is not a de Polignac number, because 5561805843 - 2¹⁰ = 5561804819 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (5561805853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132778 + ... + 169568.

It is an arithmetic number, because the mean of its divisors is an integer number (281458800).

Almost surely, 2^5561805843 is an apocalyptic number.

5561805843 is a deficient number, since it is larger than the sum of its proper divisors (3444875757).

5561805843 is a wasteful number, since it uses less digits than its factorization.

5561805843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37320 (or 37314 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The square root of 5561805843 is about 74577.5156665868. The cubic root of 5561805843 is about 1771.7615585277.

The spelling of 5561805843 in words is "five billion, five hundred sixty-one million, eight hundred five thousand, eight hundred forty-three".