561083650943 has 4 divisors (see below), whose sum is σ = 568986237648. Its totient is φ = 553181064240.

The previous prime is 561083650937. The next prime is 561083650969. The reversal of 561083650943 is 349056380165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561083650943 - 2²⁴ = 561066873727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561083650891 and 561083650900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561083659943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3951293246 + ... + 3951293387.

It is an arithmetic number, because the mean of its divisors is an integer number (142246559412).

Almost surely, 2^561083650943 is an apocalyptic number.

561083650943 is a deficient number, since it is larger than the sum of its proper divisors (7902586705).

561083650943 is an equidigital number, since it uses as much as digits as its factorization.

561083650943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7902586704.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 561083650943 in words is "five hundred sixty-one billion, eighty-three million, six hundred fifty thousand, nine hundred forty-three".