85433406839 has 8 divisors (see below), whose sum is σ = 93793713168. Its totient is φ = 77172039360.

The previous prime is 85433406809. The next prime is 85433406853. The reversal of 85433406839 is 93860433458.

It is a happy number.

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 85433406839 - 2¹⁶ = 85433341303 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 (85433406809) 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, 24732902 + ... + 24736355.

It is an arithmetic number, because the mean of its divisors is an integer number (11724214146).

Almost surely, 2^85433406839 is an apocalyptic number.

85433406839 is a deficient number, since it is larger than the sum of its proper divisors (8360306329).

85433406839 is a wasteful number, since it uses less digits than its factorization.

85433406839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49469425.

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 85433406839 in words is "eighty-five billion, four hundred thirty-three million, four hundred six thousand, eight hundred thirty-nine".