561727833945 has 8 divisors (see below), whose sum is σ = 898764534336. Its totient is φ = 299588178096.

The previous prime is 561727833929. The next prime is 561727833949. The reversal of 561727833945 is 549338727165.

It is a happy number.

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

It is not a de Polignac number, because 561727833945 - 2⁴ = 561727833929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561727833949) 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, 18724261117 + ... + 18724261146.

It is an arithmetic number, because the mean of its divisors is an integer number (112345566792).

Almost surely, 2^561727833945 is an apocalyptic number.

It is an amenable number.

561727833945 is a deficient number, since it is larger than the sum of its proper divisors (337036700391).

561727833945 is a wasteful number, since it uses less digits than its factorization.

561727833945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37448522271.

The product of its digits is 38102400, while the sum is 60.

The spelling of 561727833945 in words is "five hundred sixty-one billion, seven hundred twenty-seven million, eight hundred thirty-three thousand, nine hundred forty-five".