26781716832 has 96 divisors (see below), whose sum is σ = 77470702848. Its totient is φ = 8048871936.

The previous prime is 26781716827. The next prime is 26781716869. The reversal of 26781716832 is 23861718762.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195868 + ... + 303195.

It is an arithmetic number, because the mean of its divisors is an integer number (806986488).

Almost surely, 2^26781716832 is an apocalyptic number.

It is an amenable number.

26781716832 is an abundant number, since it is smaller than the sum of its proper divisors (50688986016).

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

26781716832 is a wasteful number, since it uses less digits than its factorization.

26781716832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499132 (or 499124 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The spelling of 26781716832 in words is "twenty-six billion, seven hundred eighty-one million, seven hundred sixteen thousand, eight hundred thirty-two".