42858644685823 has 8 divisors (see below), whose sum is σ = 42998010554016. Its totient is φ = 42719294342400.

The previous prime is 42858644685797. The next prime is 42858644685827. The reversal of 42858644685823 is 32858644685824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42858644685823 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 (42858644685827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661958 + ... + 9406348.

It is an arithmetic number, because the mean of its divisors is an integer number (5374751319252).

Almost surely, 2^{42858644685823} is an apocalyptic number.

42858644685823 is a deficient number, since it is larger than the sum of its proper divisors (139365868193).

42858644685823 is a wasteful number, since it uses less digits than its factorization.

42858644685823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7762385.

The product of its digits is 2831155200, while the sum is 73.

Subtracting from 42858644685823 its reverse (32858644685824), we obtain a palindrome (9999999999999).

The spelling of 42858644685823 in words is "forty-two trillion, eight hundred fifty-eight billion, six hundred forty-four million, six hundred eighty-five thousand, eight hundred twenty-three".