561483855369 has 20 divisors (see below), whose sum is σ = 846598723344. Its totient is φ = 370824222744.

The previous prime is 561483855367. The next prime is 561483855389. The reversal of 561483855369 is 963558384165.

It is a happy number.

561483855369 is a `hidden beast` number, since 5 + 6 + 1 + 48 + 38 + 553 + 6 + 9 = 666.

It is not a de Polignac number, because 561483855369 - 2¹ = 561483855367 is a prime.

It is a super-2 number, since 2×561483855369² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (561483855367) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32383387 + ... + 32400720.

Almost surely, 2^561483855369 is an apocalyptic number.

It is an amenable number.

561483855369 is a deficient number, since it is larger than the sum of its proper divisors (285114867975).

561483855369 is a wasteful number, since it uses less digits than its factorization.

561483855369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64784226 (or 64784217 counting only the distinct ones).

The product of its digits is 93312000, while the sum is 63.

The spelling of 561483855369 in words is "five hundred sixty-one billion, four hundred eighty-three million, eight hundred fifty-five thousand, three hundred sixty-nine".