26544865344 has 112 divisors (see below), whose sum is σ = 74358886080. Its totient is φ = 8333936640.

The previous prime is 26544865309. The next prime is 26544865351. The reversal of 26544865344 is 44356844562.

It is a happy number.

It is a super-2 number, since 2×26544865344² (a number of 22 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 610074 + ... + 652134.

Almost surely, 2^26544865344 is an apocalyptic number.

26544865344 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 26544865344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37179443040).

26544865344 is an abundant number, since it is smaller than the sum of its proper divisors (47814020736).

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

26544865344 is a wasteful number, since it uses less digits than its factorization.

26544865344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42268 (or 42258 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 51.

The spelling of 26544865344 in words is "twenty-six billion, five hundred forty-four million, eight hundred sixty-five thousand, three hundred forty-four".