85339421843 has 4 divisors (see below), whose sum is σ = 91903992768. Its totient is φ = 78774850920.

The previous prime is 85339421801. The next prime is 85339421903. The reversal of 85339421843 is 34812493358.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85339421843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85339421791 and 85339421800.

It is not an unprimeable number, because it can be changed into a prime (85339424843) 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, 3282285443 + ... + 3282285468.

It is an arithmetic number, because the mean of its divisors is an integer number (22975998192).

Almost surely, 2^85339421843 is an apocalyptic number.

85339421843 is a deficient number, since it is larger than the sum of its proper divisors (6564570925).

85339421843 is a wasteful number, since it uses less digits than its factorization.

85339421843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6564570924.

The product of its digits is 2488320, while the sum is 50.

The spelling of 85339421843 in words is "eighty-five billion, three hundred thirty-nine million, four hundred twenty-one thousand, eight hundred forty-three".