26222644064 has 48 divisors (see below), whose sum is σ = 53514639360. Its totient is φ = 12635172480.

The previous prime is 26222644043. The next prime is 26222644069. The reversal of 26222644064 is 46044622262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26222644069) 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, 181787 + ... + 292389.

It is an arithmetic number, because the mean of its divisors is an integer number (1114888320).

Almost surely, 2^26222644064 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 26222644064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26757319680).

26222644064 is an abundant number, since it is smaller than the sum of its proper divisors (27291995296).

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

26222644064 is a wasteful number, since it uses less digits than its factorization.

26222644064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110883 (or 110875 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 26222644064 in words is "twenty-six billion, two hundred twenty-two million, six hundred forty-four thousand, sixty-four".