26640424222224 has 80 divisors (see below), whose sum is σ = 70044511060800. Its totient is φ = 8722526361088.

The previous prime is 26640424222211. The next prime is 26640424222229. The reversal of 26640424222224 is 42222242404662.

It is not an unprimeable number, because it can be changed into a prime (26640424222229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346539 + ... + 7307594.

It is an arithmetic number, because the mean of its divisors is an integer number (875556388260).

Almost surely, 2^{26640424222224} is an apocalyptic number.

26640424222224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26640424222224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35022255530400).

26640424222224 is an abundant number, since it is smaller than the sum of its proper divisors (43404086838576).

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

26640424222224 is a wasteful number, since it uses less digits than its factorization.

26640424222224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7655432 (or 7655426 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 42.

Adding to 26640424222224 its reverse (42222242404662), we get a palindrome (68862666626886).

The spelling of 26640424222224 in words is "twenty-six trillion, six hundred forty billion, four hundred twenty-four million, two hundred twenty-two thousand, two hundred twenty-four".