20426255104 has 144 divisors (see below), whose sum is σ = 43910221824. Its totient is φ = 9459507200.

The previous prime is 20426255023. The next prime is 20426255107. The reversal of 20426255104 is 40155262402.

It is not an unprimeable number, because it can be changed into a prime (20426255107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46108707 + ... + 46109149.

It is an arithmetic number, because the mean of its divisors is an integer number (304932096).

Almost surely, 2^20426255104 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 20426255104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21955110912).

20426255104 is an abundant number, since it is smaller than the sum of its proper divisors (23483966720).

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

20426255104 is a wasteful number, since it uses less digits than its factorization.

20426255104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 20426255104 in words is "twenty billion, four hundred twenty-six million, two hundred fifty-five thousand, one hundred four".