42817116017 has 4 divisors (see below), whose sum is σ = 46110740340. Its totient is φ = 39523491696.

The previous prime is 42817115993. The next prime is 42817116019. The reversal of 42817116017 is 71061171824.

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 17663473216 + 25153642801 = 132904^2 + 158599^2 .

It is not a de Polignac number, because 42817116017 - 2⁶ = 42817115953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42817116019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1646812142 + ... + 1646812167.

It is an arithmetic number, because the mean of its divisors is an integer number (11527685085).

Almost surely, 2^42817116017 is an apocalyptic number.

It is an amenable number.

42817116017 is a deficient number, since it is larger than the sum of its proper divisors (3293624323).

42817116017 is a wasteful number, since it uses less digits than its factorization.

42817116017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293624322.

The product of its (nonzero) digits is 18816, while the sum is 38.

The spelling of 42817116017 in words is "forty-two billion, eight hundred seventeen million, one hundred sixteen thousand, seventeen".