26781226360 has 96 divisors (see below), whose sum is σ = 70202777760. Its totient is φ = 9168117504.

The previous prime is 26781226333. The next prime is 26781226361. The reversal of 26781226360 is 6362218762.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26781226361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1316829 + ... + 1337011.

It is an arithmetic number, because the mean of its divisors is an integer number (731278935).

Almost surely, 2^26781226360 is an apocalyptic number.

26781226360 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 26781226360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35101388880).

26781226360 is an abundant number, since it is smaller than the sum of its proper divisors (43421551400).

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

26781226360 is a wasteful number, since it uses less digits than its factorization.

26781226360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20885 (or 20874 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 26781226360 in words is "twenty-six billion, seven hundred eighty-one million, two hundred twenty-six thousand, three hundred sixty".