83834043839 has 12 divisors (see below), whose sum is σ = 103747288176. Its totient is φ = 66330231552.

The previous prime is 83834043827. The next prime is 83834043847. The reversal of 83834043839 is 93834043838.

It is not a de Polignac number, because 83834043839 - 2¹² = 83834039743 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83834043439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35431634 + ... + 35433999.

It is an arithmetic number, because the mean of its divisors is an integer number (8645607348).

Almost surely, 2^83834043839 is an apocalyptic number.

83834043839 is a deficient number, since it is larger than the sum of its proper divisors (19913244337).

83834043839 is a wasteful number, since it uses less digits than its factorization.

83834043839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70865666 (or 70865653 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 53.

Subtracting 83834043839 from its reverse (93834043838), we obtain a palindrome (9999999999).

The spelling of 83834043839 in words is "eighty-three billion, eight hundred thirty-four million, forty-three thousand, eight hundred thirty-nine".