445420788853 has 2 divisors, whose sum is σ = 445420788854. Its totient is φ = 445420788852.

The previous prime is 445420788829. The next prime is 445420788913. The reversal of 445420788853 is 358887024544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314650317969 + 130770470884 = 560937^2 + 361622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445420788853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445420788803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222710394426 + 222710394427.

It is an arithmetic number, because the mean of its divisors is an integer number (222710394427).

Almost surely, 2^445420788853 is an apocalyptic number.

It is an amenable number.

445420788853 is a deficient number, since it is larger than the sum of its proper divisors (1).

445420788853 is an equidigital number, since it uses as much as digits as its factorization.

445420788853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34406400, while the sum is 58.

The spelling of 445420788853 in words is "four hundred forty-five billion, four hundred twenty million, seven hundred eighty-eight thousand, eight hundred fifty-three".