83423632447 has 2 divisors, whose sum is σ = 83423632448. Its totient is φ = 83423632446.

The previous prime is 83423632433. The next prime is 83423632471. The reversal of 83423632447 is 74423632438.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83423632447 - 2³¹ = 81276148799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83423632397 and 83423632406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83423632477) 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 as a sum of consecutive naturals, namely, 41711816223 + 41711816224.

It is an arithmetic number, because the mean of its divisors is an integer number (41711816224).

Almost surely, 2^83423632447 is an apocalyptic number.

83423632447 is a deficient number, since it is larger than the sum of its proper divisors (1).

83423632447 is an equidigital number, since it uses as much as digits as its factorization.

83423632447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 46.

Subtracting from 83423632447 its reverse (74423632438), we obtain a palindrome (9000000009).

The spelling of 83423632447 in words is "eighty-three billion, four hundred twenty-three million, six hundred thirty-two thousand, four hundred forty-seven".