83819824689 has 4 divisors (see below), whose sum is σ = 111759766256. Its totient is φ = 55879883124.

The previous prime is 83819824667. The next prime is 83819824733. The reversal of 83819824689 is 98642891838.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 83819824689 - 2¹¹ = 83819822641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83819824189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13969970779 + ... + 13969970784.

It is an arithmetic number, because the mean of its divisors is an integer number (27939941564).

Almost surely, 2^83819824689 is an apocalyptic number.

It is an amenable number.

83819824689 is a deficient number, since it is larger than the sum of its proper divisors (27939941567).

83819824689 is a wasteful number, since it uses less digits than its factorization.

83819824689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27939941566.

The product of its digits is 47775744, while the sum is 66.

The spelling of 83819824689 in words is "eighty-three billion, eight hundred nineteen million, eight hundred twenty-four thousand, six hundred eighty-nine".