26308878247782 has 96 divisors (see below), whose sum is σ = 63771329180832. Its totient is φ = 8081008809984.

The previous prime is 26308878247721. The next prime is 26308878247793. The reversal of 26308878247782 is 28774287880362.

26308878247782 is a `hidden beast` number, since 2 + 6 + 3 + 0 + 8 + 8 + 78 + 2 + 477 + 82 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 26308878247782.

It is a congruent number.

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, 37068 + ... + 7253904.

It is an arithmetic number, because the mean of its divisors is an integer number (664284678967).

Almost surely, 2^{26308878247782} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26308878247782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31885664590416).

26308878247782 is an abundant number, since it is smaller than the sum of its proper divisors (37462450933050).

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

26308878247782 is a wasteful number, since it uses less digits than its factorization.

26308878247782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7217444 (or 7217432 counting only the distinct ones).

The product of its (nonzero) digits is 809238528, while the sum is 72.

The spelling of 26308878247782 in words is "twenty-six trillion, three hundred eight billion, eight hundred seventy-eight million, two hundred forty-seven thousand, seven hundred eighty-two".