22421626345423 has 4 divisors (see below), whose sum is σ = 22422164321088. Its totient is φ = 22421088369760.

The previous prime is 22421626345403. The next prime is 22421626345457. The reversal of 22421626345423 is 32454362612422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22421626345423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421626345403) 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, 268925311 + ... + 269008672.

It is an arithmetic number, because the mean of its divisors is an integer number (5605541080272).

Almost surely, 2^{22421626345423} is an apocalyptic number.

22421626345423 is a deficient number, since it is larger than the sum of its proper divisors (537975665).

22421626345423 is an equidigital number, since it uses as much as digits as its factorization.

22421626345423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537975664.

The product of its digits is 3317760, while the sum is 46.

Adding to 22421626345423 its reverse (32454362612422), we get a palindrome (54875988957845).

The spelling of 22421626345423 in words is "twenty-two trillion, four hundred twenty-one billion, six hundred twenty-six million, three hundred forty-five thousand, four hundred twenty-three".