83423632439 has 6 divisors (see below), whose sum is σ = 97043817384. Its totient is φ = 71505970620.

The previous prime is 83423632433. The next prime is 83423632447. The reversal of 83423632439 is 93423632438.

It is a de Polignac number, because none of the positive numbers 2^k-83423632439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83423632393 and 83423632402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83423632433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 851261507 + ... + 851261604.

It is an arithmetic number, because the mean of its divisors is an integer number (16173969564).

Almost surely, 2^83423632439 is an apocalyptic number.

83423632439 is a deficient number, since it is larger than the sum of its proper divisors (13620184945).

83423632439 is a wasteful number, since it uses less digits than its factorization.

83423632439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702523125 (or 1702523118 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 47.

Subtracting 83423632439 from its reverse (93423632438), we obtain a palindrome (9999999999).

The spelling of 83423632439 in words is "eighty-three billion, four hundred twenty-three million, six hundred thirty-two thousand, four hundred thirty-nine".