561786687096 has 32 divisors (see below), whose sum is σ = 1404586558800. Its totient is φ = 187246250240.

The previous prime is 561786687061. The next prime is 561786687101. The reversal of 561786687096 is 690786687165.

It is a self number, because there is not a number n which added to its sum of digits gives 561786687096.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 709845 + ... + 1275716.

Almost surely, 2^561786687096 is an apocalyptic number.

It is an amenable number.

561786687096 is an abundant number, since it is smaller than the sum of its proper divisors (842799871704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561786687096 is a wasteful number, since it uses less digits than its factorization.

561786687096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997359 (or 1997355 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 69.

Adding to 561786687096 its sum of digits (69), we get a palindrome (561786687165).

The spelling of 561786687096 in words is "five hundred sixty-one billion, seven hundred eighty-six million, six hundred eighty-seven thousand, ninety-six".