4405422321523 has 4 divisors (see below), whose sum is σ = 4405809827160. Its totient is φ = 4405034815888.

The previous prime is 4405422321473. The next prime is 4405422321529. The reversal of 4405422321523 is 3251232245044.

It is a happy number.

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 4405422321523 - 2⁹ = 4405422321011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4405422321529) 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, 193735765 + ... + 193758502.

It is an arithmetic number, because the mean of its divisors is an integer number (1101452456790).

Almost surely, 2^{4405422321523} is an apocalyptic number.

4405422321523 is a deficient number, since it is larger than the sum of its proper divisors (387505637).

4405422321523 is a wasteful number, since it uses less digits than its factorization.

4405422321523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387505636.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 4405422321523 its reverse (3251232245044), we get a palindrome (7656654566567).

The spelling of 4405422321523 in words is "four trillion, four hundred five billion, four hundred twenty-two million, three hundred twenty-one thousand, five hundred twenty-three".