561472243533 has 20 divisors (see below), whose sum is σ = 843888166528. Its totient is φ = 372018410280.

The previous prime is 561472243529. The next prime is 561472243583. The reversal of 561472243533 is 335342274165.

It is a happy number.

561472243533 is a `hidden beast` number, since 5 + 6 + 1 + 4 + 72 + 2 + 43 + 533 = 666.

It is not a de Polignac number, because 561472243533 - 2² = 561472243529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561472243523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21249853 + ... + 21276258.

Almost surely, 2^561472243533 is an apocalyptic number.

It is an amenable number.

561472243533 is a deficient number, since it is larger than the sum of its proper divisors (282415922995).

561472243533 is a wasteful number, since it uses less digits than its factorization.

561472243533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42526286 (or 42526277 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 45.

The spelling of 561472243533 in words is "five hundred sixty-one billion, four hundred seventy-two million, two hundred forty-three thousand, five hundred thirty-three".