26220444620 has 48 divisors (see below), whose sum is σ = 55267107840. Its totient is φ = 10449356544.

The previous prime is 26220444617. The next prime is 26220444661. The reversal of 26220444620 is 2644402262.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9756917 + ... + 9759603.

It is an arithmetic number, because the mean of its divisors is an integer number (1151398080).

Almost surely, 2^26220444620 is an apocalyptic number.

26220444620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26220444620 is an abundant number, since it is smaller than the sum of its proper divisors (29046663220).

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

26220444620 is a wasteful number, since it uses less digits than its factorization.

26220444620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322 (or 4320 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 26220444620 its reverse (2644402262), we get a palindrome (28864846882).

The spelling of 26220444620 in words is "twenty-six billion, two hundred twenty million, four hundred forty-four thousand, six hundred twenty".