26288547808 has 96 divisors (see below), whose sum is σ = 53520264000. Its totient is φ = 12705079296.

The previous prime is 26288547787. The next prime is 26288547809. The reversal of 26288547808 is 80874588262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26288547809) 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, 43887093 + ... + 43887691.

It is an arithmetic number, because the mean of its divisors is an integer number (557502750).

Almost surely, 2^26288547808 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 26288547808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26760132000).

26288547808 is an abundant number, since it is smaller than the sum of its proper divisors (27231716192).

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

26288547808 is a wasteful number, since it uses less digits than its factorization.

26288547808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 58.

The spelling of 26288547808 in words is "twenty-six billion, two hundred eighty-eight million, five hundred forty-seven thousand, eight hundred eight".