42234478185 has 16 divisors (see below), whose sum is σ = 67581542016. Its totient is φ = 22522929408.

The previous prime is 42234478163. The next prime is 42234478201. The reversal of 42234478185 is 58187443224.

It is not a de Polignac number, because 42234478185 - 2¹⁵ = 42234445417 is a prime.

It is a super-2 number, since 2×42234478185² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38532 + ... + 293178.

It is an arithmetic number, because the mean of its divisors is an integer number (4223846376).

Almost surely, 2^42234478185 is an apocalyptic number.

It is an amenable number.

42234478185 is a deficient number, since it is larger than the sum of its proper divisors (25347063831).

42234478185 is a wasteful number, since it uses less digits than its factorization.

42234478185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265712.

The product of its digits is 1720320, while the sum is 48.

The spelling of 42234478185 in words is "forty-two billion, two hundred thirty-four million, four hundred seventy-eight thousand, one hundred eighty-five".