42017278163 has 24 divisors (see below), whose sum is σ = 51049420800. Its totient is φ = 33864891984.

The previous prime is 42017278153. The next prime is 42017278189. The reversal of 42017278163 is 36187271024.

It is not a de Polignac number, because 42017278163 - 2²⁴ = 42000500947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42017278163.

It is not an unprimeable number, because it can be changed into a prime (42017278153) 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 23 ways as a sum of consecutive naturals, for example, 122318 + ... + 314636.

It is an arithmetic number, because the mean of its divisors is an integer number (2127059200).

Almost surely, 2^42017278163 is an apocalyptic number.

42017278163 is a deficient number, since it is larger than the sum of its proper divisors (9032142637).

42017278163 is a wasteful number, since it uses less digits than its factorization.

42017278163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192431 (or 192408 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 42017278163 in words is "forty-two billion, seventeen million, two hundred seventy-eight thousand, one hundred sixty-three".