561132326389 has 8 divisors (see below), whose sum is σ = 566144359128. Its totient is φ = 556133571840.

The previous prime is 561132326333. The next prime is 561132326411. The reversal of 561132326389 is 983623231165.

It can be written as a sum of positive squares in 4 ways, for example, as 24967160100 + 536165166289 = 158010^2 + 732233^2 .

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 561132326389 - 2¹¹ = 561132324341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561132326189) 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, 3234642 + ... + 3403699.

It is an arithmetic number, because the mean of its divisors is an integer number (70768044891).

Almost surely, 2^561132326389 is an apocalyptic number.

It is an amenable number.

561132326389 is a deficient number, since it is larger than the sum of its proper divisors (5012032739).

561132326389 is a wasteful number, since it uses less digits than its factorization.

561132326389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6639095.

The product of its digits is 1399680, while the sum is 49.

The spelling of 561132326389 in words is "five hundred sixty-one billion, one hundred thirty-two million, three hundred twenty-six thousand, three hundred eighty-nine".