42812170509 has 8 divisors (see below), whose sum is σ = 57214726912. Its totient is φ = 28475530560.

The previous prime is 42812170481. The next prime is 42812170561. The reversal of 42812170509 is 90507121824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42812170509 - 2⁸ = 42812170253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42812170409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16477597 + ... + 16480194.

It is an arithmetic number, because the mean of its divisors is an integer number (7151840864).

Almost surely, 2^42812170509 is an apocalyptic number.

It is an amenable number.

42812170509 is a deficient number, since it is larger than the sum of its proper divisors (14402556403).

42812170509 is a wasteful number, since it uses less digits than its factorization.

42812170509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32958227.

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 42812170509 in words is "forty-two billion, eight hundred twelve million, one hundred seventy thousand, five hundred nine".