42861432858 has 8 divisors (see below), whose sum is σ = 85722865728. Its totient is φ = 14287144284.

The previous prime is 42861432839. The next prime is 42861432871. The reversal of 42861432858 is 85823416824.

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

42861432858 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42861432858.

It is an unprimeable number.

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, 3571786066 + ... + 3571786077.

It is an arithmetic number, because the mean of its divisors is an integer number (10715358216).

Almost surely, 2^42861432858 is an apocalyptic number.

42861432858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42861432858 is a wasteful number, since it uses less digits than its factorization.

42861432858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143572148.

The product of its digits is 2949120, while the sum is 51.

The spelling of 42861432858 in words is "forty-two billion, eight hundred sixty-one million, four hundred thirty-two thousand, eight hundred fifty-eight".