52443871909 has 12 divisors (see below), whose sum is σ = 62079143308. Its totient is φ = 44008842240.

The previous prime is 52443871903. The next prime is 52443871913. The reversal of 52443871909 is 90917834425.

It can be written as a sum of positive squares in 2 ways, for example, as 6325020900 + 46118851009 = 79530^2 + 214753^2 .

It is not a de Polignac number, because 52443871909 - 2¹¹ = 52443869861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52443871903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16668444 + ... + 16671589.

Almost surely, 2^52443871909 is an apocalyptic number.

It is an amenable number.

52443871909 is a deficient number, since it is larger than the sum of its proper divisors (9635271399).

52443871909 is a wasteful number, since it uses less digits than its factorization.

52443871909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33340068 (or 33340057 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 52443871909 in words is "fifty-two billion, four hundred forty-three million, eight hundred seventy-one thousand, nine hundred nine".