26549544208 has 80 divisors (see below), whose sum is σ = 59146214400. Its totient is φ = 11417984640.

The previous prime is 26549544187. The next prime is 26549544233. The reversal of 26549544208 is 80244594562.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2800885 + ... + 2810347.

It is an arithmetic number, because the mean of its divisors is an integer number (739327680).

Almost surely, 2^26549544208 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 26549544208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29573107200).

26549544208 is an abundant number, since it is smaller than the sum of its proper divisors (32596670192).

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

26549544208 is a wasteful number, since it uses less digits than its factorization.

26549544208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10340 (or 10334 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 26549544208 in words is "twenty-six billion, five hundred forty-nine million, five hundred forty-four thousand, two hundred eight".