84275859439 has 4 divisors (see below), whose sum is σ = 84423972240. Its totient is φ = 84127746640.

The previous prime is 84275859391. The next prime is 84275859523. The reversal of 84275859439 is 93495857248.

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

It is a cyclic number.

It is not a de Polignac number, because 84275859439 - 2¹⁷ = 84275728367 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 (84275859539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74055547 + ... + 74056684.

It is an arithmetic number, because the mean of its divisors is an integer number (21105993060).

Almost surely, 2^84275859439 is an apocalyptic number.

84275859439 is a deficient number, since it is larger than the sum of its proper divisors (148112801).

84275859439 is a wasteful number, since it uses less digits than its factorization.

84275859439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148112800.

The product of its digits is 87091200, while the sum is 64.

The spelling of 84275859439 in words is "eighty-four billion, two hundred seventy-five million, eight hundred fifty-nine thousand, four hundred thirty-nine".