20488441445 has 4 divisors (see below), whose sum is σ = 24586129740. Its totient is φ = 16390753152.

The previous prime is 20488441417. The next prime is 20488441447. The reversal of 20488441445 is 54414488402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16180094401 + 4308347044 = 127201^2 + 65638^2 .

It is a cyclic number.

It is not a de Polignac number, because 20488441445 - 2⁸ = 20488441189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20488441396 and 20488441405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20488441447) 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 3 ways as a sum of consecutive naturals, for example, 2048844140 + ... + 2048844149.

It is an arithmetic number, because the mean of its divisors is an integer number (6146532435).

Almost surely, 2^20488441445 is an apocalyptic number.

It is an amenable number.

20488441445 is a deficient number, since it is larger than the sum of its proper divisors (4097688295).

20488441445 is an equidigital number, since it uses as much as digits as its factorization.

20488441445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097688294.

The product of its (nonzero) digits is 655360, while the sum is 44.

The spelling of 20488441445 in words is "twenty billion, four hundred eighty-eight million, four hundred forty-one thousand, four hundred forty-five".