42817422931 has 8 divisors (see below), whose sum is σ = 42981938384. Its totient is φ = 42653070720.

The previous prime is 42817422881. The next prime is 42817422971. The reversal of 42817422931 is 13922471824.

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

It is a cyclic number.

It is not a de Polignac number, because 42817422931 - 2¹¹ = 42817420883 is a prime.

It is a super-4 number, since 4×42817422931⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42817422971) 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 7 ways as a sum of consecutive naturals, for example, 498391 + ... + 577951.

It is an arithmetic number, because the mean of its divisors is an integer number (5372742298).

Almost surely, 2^42817422931 is an apocalyptic number.

42817422931 is a deficient number, since it is larger than the sum of its proper divisors (164515453).

42817422931 is a wasteful number, since it uses less digits than its factorization.

42817422931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81621.

The product of its digits is 193536, while the sum is 43.

The spelling of 42817422931 in words is "forty-two billion, eight hundred seventeen million, four hundred twenty-two thousand, nine hundred thirty-one".