26210804256 has 336 divisors, whose sum is σ = 95230344384. Its totient is φ = 6912179712.

The previous prime is 26210804237. The next prime is 26210804287. The reversal of 26210804256 is 65240801262.

It is a happy number.

26210804256 is a `hidden beast` number, since 2 + 621 + 0 + 8 + 0 + 4 + 25 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 26210804256.

It is a congruent number.

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 55 ways as a sum of consecutive naturals, for example, 2116675 + ... + 2129021.

It is an arithmetic number, because the mean of its divisors is an integer number (283423644).

Almost surely, 2^26210804256 is an apocalyptic number.

26210804256 is a gapful number since it is divisible by the number (26) 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 26210804256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47615172192).

26210804256 is an abundant number, since it is smaller than the sum of its proper divisors (69019540128).

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

26210804256 is a wasteful number, since it uses less digits than its factorization.

26210804256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12395 (or 12372 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 26210804256 in words is "twenty-six billion, two hundred ten million, eight hundred four thousand, two hundred fifty-six".