84684599999 has 4 divisors (see below), whose sum is σ = 84690900840. Its totient is φ = 84678299160.

The previous prime is 84684599981. The next prime is 84684600019. The reversal of 84684599999 is 99999548648.

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 84684599999 - 2²⁴ = 84667822783 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 (84684599929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3130217 + ... + 3157154.

It is an arithmetic number, because the mean of its divisors is an integer number (21172725210).

Almost surely, 2^84684599999 is an apocalyptic number.

84684599999 is a deficient number, since it is larger than the sum of its proper divisors (6300841).

84684599999 is a wasteful number, since it uses less digits than its factorization.

84684599999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300840.

The product of its digits is 1813985280, while the sum is 80.

The spelling of 84684599999 in words is "eighty-four billion, six hundred eighty-four million, five hundred ninety-nine thousand, nine hundred ninety-nine".