561300857406784 has 56 divisors (see below), whose sum is σ = 1220441602300128. Its totient is φ = 254012802839040.

The previous prime is 561300857406781. The next prime is 561300857406853. The reversal of 561300857406784 is 487604758003165.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561300857406781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1756012779 + ... + 1756332394.

Almost surely, 2^{561300857406784} is an apocalyptic number.

It is an amenable number.

561300857406784 is an abundant number, since it is smaller than the sum of its proper divisors (659140744893344).

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

561300857406784 is a wasteful number, since it uses less digits than its factorization.

561300857406784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512345423 (or 3512345413 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 64.

The spelling of 561300857406784 in words is "five hundred sixty-one trillion, three hundred billion, eight hundred fifty-seven million, four hundred six thousand, seven hundred eighty-four".