105580785859 has 4 divisors (see below), whose sum is σ = 108036153016. Its totient is φ = 103125418704.

The previous prime is 105580785841. The next prime is 105580785881. The reversal of 105580785859 is 958587085501.

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 105580785859 - 2³³ = 96990851267 is a prime.

It is a super-2 number, since 2×105580785859² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105580785797 and 105580785806.

It is not an unprimeable number, because it can be changed into a prime (105580785559) 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, 1227683514 + ... + 1227683599.

It is an arithmetic number, because the mean of its divisors is an integer number (27009038254).

Almost surely, 2^105580785859 is an apocalyptic number.

105580785859 is a deficient number, since it is larger than the sum of its proper divisors (2455367157).

105580785859 is an equidigital number, since it uses as much as digits as its factorization.

105580785859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455367156.

The product of its (nonzero) digits is 20160000, while the sum is 61.

The spelling of 105580785859 in words is "one hundred five billion, five hundred eighty million, seven hundred eighty-five thousand, eight hundred fifty-nine".