20441986853 has 2 divisors, whose sum is σ = 20441986854. Its totient is φ = 20441986852.

The previous prime is 20441986843. The next prime is 20441986883. The reversal of 20441986853 is 35868914402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16999465924 + 3442520929 = 130382^2 + 58673^2 .

It is a cyclic number.

It is not a de Polignac number, because 20441986853 - 2¹⁴ = 20441970469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20441986843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220993426 + 10220993427.

It is an arithmetic number, because the mean of its divisors is an integer number (10220993427).

Almost surely, 2^20441986853 is an apocalyptic number.

It is an amenable number.

20441986853 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441986853 is an equidigital number, since it uses as much as digits as its factorization.

20441986853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 20441986853 in words is "twenty billion, four hundred forty-one million, nine hundred eighty-six thousand, eight hundred fifty-three".