26211784760 has 128 divisors (see below), whose sum is σ = 68086656000. Its totient is φ = 8895943680.

The previous prime is 26211784693. The next prime is 26211784777. The reversal of 26211784760 is 6748711262.

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 31 ways as a sum of consecutive naturals, for example, 21970724 + ... + 21971916.

It is an arithmetic number, because the mean of its divisors is an integer number (531927000).

Almost surely, 2^26211784760 is an apocalyptic number.

26211784760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26211784760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34043328000).

26211784760 is an abundant number, since it is smaller than the sum of its proper divisors (41874871240).

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

26211784760 is a wasteful number, since it uses less digits than its factorization.

26211784760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 26211784760 in words is "twenty-six billion, two hundred eleven million, seven hundred eighty-four thousand, seven hundred sixty".