42017008185 has 12 divisors (see below), whose sum is σ = 72829480932. Its totient is φ = 22409071008.

The previous prime is 42017008183. The next prime is 42017008207. The reversal of 42017008185 is 58180071024.

It can be written as a sum of positive squares in 2 ways, for example, as 22328428329 + 19688579856 = 149427^2 + 140316^2 .

It is not a de Polignac number, because 42017008185 - 2¹ = 42017008183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42017008183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 466855602 + ... + 466855691.

It is an arithmetic number, because the mean of its divisors is an integer number (6069123411).

Almost surely, 2^42017008185 is an apocalyptic number.

42017008185 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42017008185 is a deficient number, since it is larger than the sum of its proper divisors (30812472747).

42017008185 is a wasteful number, since it uses less digits than its factorization.

42017008185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933711304 (or 933711301 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 42017008185 in words is "forty-two billion, seventeen million, eight thousand, one hundred eighty-five".