26856282816 has 168 divisors, whose sum is σ = 84127140864. Its totient is φ = 8123696640.

The previous prime is 26856282809. The next prime is 26856282839. The reversal of 26856282816 is 61828265862.

It is a happy number.

26856282816 is a `hidden beast` number, since 2 + 6 + 8 + 5 + 628 + 2 + 8 + 1 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3842461 + ... + 3849443.

Almost surely, 2^26856282816 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 26856282816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42063570432).

26856282816 is an abundant number, since it is smaller than the sum of its proper divisors (57270858048).

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

26856282816 is a wasteful number, since it uses less digits than its factorization.

26856282816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7619 (or 7606 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The spelling of 26856282816 in words is "twenty-six billion, eight hundred fifty-six million, two hundred eighty-two thousand, eight hundred sixteen".