26808690470976 has 140 divisors (see below), whose sum is σ = 79584373896720. Its totient is φ = 8923296648960.

The previous prime is 26808690470971. The next prime is 26808690470999. The reversal of 26808690470976 is 67907409680862.

26808690470976 is a `hidden beast` number, since 2 + 6 + 8 + 0 + 8 + 69 + 0 + 470 + 97 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (26808690470971) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 159846 + ... + 7324133.

It is an arithmetic number, because the mean of its divisors is an integer number (568459813548).

Almost surely, 2^{26808690470976} 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 26808690470976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39792186948360).

26808690470976 is an abundant number, since it is smaller than the sum of its proper divisors (52775683425744).

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

26808690470976 is an equidigital number, since it uses as much as digits as its factorization.

26808690470976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7484694 (or 7484675 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 72.

The spelling of 26808690470976 in words is "twenty-six trillion, eight hundred eight billion, six hundred ninety million, four hundred seventy thousand, nine hundred seventy-six".