26218364928 has 192 divisors, whose sum is σ = 81344139120. Its totient is φ = 7489585152.

The previous prime is 26218364873. The next prime is 26218364933. The reversal of 26218364928 is 82946381262.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4814175 + ... + 4819617.

Almost surely, 2^26218364928 is an apocalyptic number.

26218364928 is a gapful number since it is divisible by the number (28) 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 26218364928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40672069560).

26218364928 is an abundant number, since it is smaller than the sum of its proper divisors (55125774192).

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

26218364928 is an frugal number, since it uses more digits than its factorization.

26218364928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490 (or 5455 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The spelling of 26218364928 in words is "twenty-six billion, two hundred eighteen million, three hundred sixty-four thousand, nine hundred twenty-eight".