26256808242 has 96 divisors (see below), whose sum is σ = 66912797952. Its totient is φ = 7284028032.

The previous prime is 26256808199. The next prime is 26256808289. The reversal of 26256808242 is 24280865262.

26256808242 is a `hidden beast` number, since 2 + 6 + 2 + 568 + 0 + 82 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2339388 + ... + 2350584.

It is an arithmetic number, because the mean of its divisors is an integer number (697008312).

Almost surely, 2^26256808242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26256808242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33456398976).

26256808242 is an abundant number, since it is smaller than the sum of its proper divisors (40655989710).

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

26256808242 is a wasteful number, since it uses less digits than its factorization.

26256808242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11752 (or 11749 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 26256808242 in words is "twenty-six billion, two hundred fifty-six million, eight hundred eight thousand, two hundred forty-two".