26756809056 has 120 divisors (see below), whose sum is σ = 79575887160. Its totient is φ = 8818647552.

The previous prime is 26756809049. The next prime is 26756809067. The reversal of 26756809056 is 65090865762.

It is a happy number.

26756809056 is a `hidden beast` number, since 26 + 7 + 568 + 0 + 9 + 0 + 56 = 666.

It is a super-2 number, since 2×26756809056² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 26756808993 and 26756809011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 172695 + ... + 288681.

It is an arithmetic number, because the mean of its divisors is an integer number (663132393).

Almost surely, 2^26756809056 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 26756809056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39787943580).

26756809056 is an abundant number, since it is smaller than the sum of its proper divisors (52819078104).

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

26756809056 is a wasteful number, since it uses less digits than its factorization.

26756809056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116098 (or 116081 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 26756809056 in words is "twenty-six billion, seven hundred fifty-six million, eight hundred nine thousand, fifty-six".