26620426220 has 24 divisors (see below), whose sum is σ = 56445645984. Its totient is φ = 10544789376.

The previous prime is 26620426211. The next prime is 26620426243. The reversal of 26620426220 is 2262402662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6459209 + ... + 6463328.

It is an arithmetic number, because the mean of its divisors is an integer number (2351901916).

Almost surely, 2^26620426220 is an apocalyptic number.

26620426220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26620426220 is an abundant number, since it is smaller than the sum of its proper divisors (29825219764).

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

26620426220 is a wasteful number, since it uses less digits than its factorization.

26620426220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12922649 (or 12922647 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 26620426220 its reverse (2262402662), we get a palindrome (28882828882).

The spelling of 26620426220 in words is "twenty-six billion, six hundred twenty million, four hundred twenty-six thousand, two hundred twenty".