561563871711 has 8 divisors (see below), whose sum is σ = 748849748400. Its totient is φ = 374326954752.

The previous prime is 561563871709. The next prime is 561563871751. The reversal of 561563871711 is 117178365165.

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

It is not a de Polignac number, because 561563871711 - 2¹ = 561563871709 is a prime.

It is a super-2 number, since 2×561563871711² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561563871751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12213160 + ... + 12259053.

It is an arithmetic number, because the mean of its divisors is an integer number (93606218550).

Almost surely, 2^561563871711 is an apocalyptic number.

561563871711 is a deficient number, since it is larger than the sum of its proper divisors (187285876689).

561563871711 is a wasteful number, since it uses less digits than its factorization.

561563871711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24479865.

The product of its digits is 1058400, while the sum is 51.

The spelling of 561563871711 in words is "five hundred sixty-one billion, five hundred sixty-three million, eight hundred seventy-one thousand, seven hundred eleven".