844943542453 has 2 divisors, whose sum is σ = 844943542454. Its totient is φ = 844943542452.

The previous prime is 844943542439. The next prime is 844943542477. The reversal of 844943542453 is 354245349448.

844943542453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 704916405649 + 140027136804 = 839593^2 + 374202^2 .

It is a cyclic number.

It is not a de Polignac number, because 844943542453 - 2⁹ = 844943541941 is a prime.

It is a super-2 number, since 2×844943542453² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 844943542394 and 844943542403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844943549453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422471771226 + 422471771227.

It is an arithmetic number, because the mean of its divisors is an integer number (422471771227).

Almost surely, 2^844943542453 is an apocalyptic number.

It is an amenable number.

844943542453 is a deficient number, since it is larger than the sum of its proper divisors (1).

844943542453 is an equidigital number, since it uses as much as digits as its factorization.

844943542453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33177600, while the sum is 55.

The spelling of 844943542453 in words is "eight hundred forty-four billion, nine hundred forty-three million, five hundred forty-two thousand, four hundred fifty-three".