5561381834 has 16 divisors (see below), whose sum is σ = 8752344576. Its totient is φ = 2646874800.

The previous prime is 5561381827. The next prime is 5561381851. The reversal of 5561381834 is 4381831655.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731462 + ... + 739025.

It is an arithmetic number, because the mean of its divisors is an integer number (547021536).

Almost surely, 2^5561381834 is an apocalyptic number.

5561381834 is a deficient number, since it is larger than the sum of its proper divisors (3190962742).

5561381834 is a wasteful number, since it uses less digits than its factorization.

5561381834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470581.

The product of its digits is 345600, while the sum is 44.

The square root of 5561381834 is about 74574.6728722292. The cubic root of 5561381834 is about 1771.7165334669.

The spelling of 5561381834 in words is "five billion, five hundred sixty-one million, three hundred eighty-one thousand, eight hundred thirty-four".