23421604200544 has 72 divisors (see below), whose sum is σ = 50701116843720. Its totient is φ = 10642652021760.

The previous prime is 23421604200481. The next prime is 23421604200587. The reversal of 23421604200544 is 44500240612432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10687752 + ... + 12691384.

It is an arithmetic number, because the mean of its divisors is an integer number (704182178385).

Almost surely, 2^{23421604200544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23421604200544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25350558421860).

23421604200544 is an abundant number, since it is smaller than the sum of its proper divisors (27279512643176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23421604200544 is a wasteful number, since it uses less digits than its factorization.

23421604200544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006684 (or 2006665 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 23421604200544 its reverse (44500240612432), we get a palindrome (67921844812976).

The spelling of 23421604200544 in words is "twenty-three trillion, four hundred twenty-one billion, six hundred four million, two hundred thousand, five hundred forty-four".