26822171456 has 56 divisors (see below), whose sum is σ = 55322358240. Its totient is φ = 12887078400.

The previous prime is 26822171429. The next prime is 26822171459. The reversal of 26822171456 is 65417122862.

It is a super-2 number, since 2×26822171456² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26822171459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357371 + ... + 425861.

Almost surely, 2^26822171456 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 26822171456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27661179120).

26822171456 is an abundant number, since it is smaller than the sum of its proper divisors (28500186784).

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

26822171456 is a wasteful number, since it uses less digits than its factorization.

26822171456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68743 (or 68733 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The spelling of 26822171456 in words is "twenty-six billion, eight hundred twenty-two million, one hundred seventy-one thousand, four hundred fifty-six".