26086911808 has 56 divisors (see below), whose sum is σ = 54917684424. Its totient is φ = 12252364800.

The previous prime is 26086911797. The next prime is 26086911847. The reversal of 26086911808 is 80811968062.

It can be written as a sum of positive squares in 4 ways, for example, as 12198760704 + 13888151104 = 110448^2 + 117848^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543838 + ... + 589858.

Almost surely, 2^26086911808 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 26086911808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27458842212).

26086911808 is an abundant number, since it is smaller than the sum of its proper divisors (28830772616).

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

26086911808 is a wasteful number, since it uses less digits than its factorization.

26086911808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46571 (or 46561 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 49.

The spelling of 26086911808 in words is "twenty-six billion, eighty-six million, nine hundred eleven thousand, eight hundred eight".