42559683185 has 4 divisors (see below), whose sum is σ = 51071619828. Its totient is φ = 34047746544.

The previous prime is 42559683167. The next prime is 42559683191. The reversal of 42559683185 is 58138695524.

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 7737137521 + 34822545664 = 87961^2 + 186608^2 .

It is a cyclic number.

It is not a de Polignac number, because 42559683185 - 2¹⁰ = 42559682161 is a prime.

It is a super-2 number, since 2×42559683185² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42559683185.

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 3 ways as a sum of consecutive naturals, for example, 4255968314 + ... + 4255968323.

It is an arithmetic number, because the mean of its divisors is an integer number (12767904957).

Almost surely, 2^42559683185 is an apocalyptic number.

It is an amenable number.

42559683185 is a deficient number, since it is larger than the sum of its proper divisors (8511936643).

42559683185 is an equidigital number, since it uses as much as digits as its factorization.

42559683185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8511936642.

The product of its digits is 10368000, while the sum is 56.

The spelling of 42559683185 in words is "forty-two billion, five hundred fifty-nine million, six hundred eighty-three thousand, one hundred eighty-five".