561784072048255 has 8 divisors (see below), whose sum is σ = 770446727380512. Its totient is φ = 385223363690208.

The previous prime is 561784072048253. The next prime is 561784072048261. The reversal of 561784072048255 is 552840270487165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561784072048255 - 2¹ = 561784072048253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561784072048253) 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, 8025486743512 + ... + 8025486743581.

It is an arithmetic number, because the mean of its divisors is an integer number (96305840922564).

Almost surely, 2^{561784072048255} is an apocalyptic number.

561784072048255 is a deficient number, since it is larger than the sum of its proper divisors (208662655332257).

561784072048255 is a wasteful number, since it uses less digits than its factorization.

561784072048255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16050973487105.

The product of its (nonzero) digits is 150528000, while the sum is 64.

The spelling of 561784072048255 in words is "five hundred sixty-one trillion, seven hundred eighty-four billion, seventy-two million, forty-eight thousand, two hundred fifty-five".