561222227839 has 16 divisors (see below), whose sum is σ = 690755114560. Its totient is φ = 444031061760.

The previous prime is 561222227837. The next prime is 561222227873. The reversal of 561222227839 is 938722222165.

It is not a de Polignac number, because 561222227839 - 2¹ = 561222227837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561222227792 and 561222227801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561222227837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4164169 + ... + 4296829.

It is an arithmetic number, because the mean of its divisors is an integer number (43172194660).

Almost surely, 2^561222227839 is an apocalyptic number.

561222227839 is a deficient number, since it is larger than the sum of its proper divisors (129532886721).

561222227839 is a wasteful number, since it uses less digits than its factorization.

561222227839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179170.

The product of its digits is 1451520, while the sum is 49.

The spelling of 561222227839 in words is "five hundred sixty-one billion, two hundred twenty-two million, two hundred twenty-seven thousand, eight hundred thirty-nine".