561727783348 has 12 divisors (see below), whose sum is σ = 983028914980. Its totient is φ = 280862379072.

The previous prime is 561727783343. The next prime is 561727783349. The reversal of 561727783348 is 843387727165.

It can be written as a sum of positive squares in 2 ways, for example, as 269373456144 + 292354327204 = 519012^2 + 540698^2 .

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561727783343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095568 + ... + 1524376.

Almost surely, 2^561727783348 is an apocalyptic number.

It is an amenable number.

561727783348 is a deficient number, since it is larger than the sum of its proper divisors (421301131632).

561727783348 is a wasteful number, since it uses less digits than its factorization.

561727783348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756306 (or 756304 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 61.

The spelling of 561727783348 in words is "five hundred sixty-one billion, seven hundred twenty-seven million, seven hundred eighty-three thousand, three hundred forty-eight".