561178860359 has 16 divisors (see below), whose sum is σ = 605759812224. Its totient is φ = 516800671200.

The previous prime is 561178860343. The next prime is 561178860419. The reversal of 561178860359 is 953068871165.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 561178860359 - 2⁴ = 561178860343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561178860298 and 561178860307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561178860059) 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, 17191964 + ... + 17224574.

It is an arithmetic number, because the mean of its divisors is an integer number (37859988264).

Almost surely, 2^561178860359 is an apocalyptic number.

561178860359 is a deficient number, since it is larger than the sum of its proper divisors (44580951865).

561178860359 is a wasteful number, since it uses less digits than its factorization.

561178860359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35678.

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 561178860359 in words is "five hundred sixty-one billion, one hundred seventy-eight million, eight hundred sixty thousand, three hundred fifty-nine".