561719230845 has 32 divisors (see below), whose sum is σ = 923670760320. Its totient is φ = 291324533760.

The previous prime is 561719230823. The next prime is 561719230867. The reversal of 561719230845 is 548032917165.

It is an interprime number because it is at equal distance from previous prime (561719230823) and next prime (561719230867).

It is not a de Polignac number, because 561719230845 - 2¹² = 561719226749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1298760 + ... + 1676369.

It is an arithmetic number, because the mean of its divisors is an integer number (28864711260).

It is a 1-persistent number, because it is pandigital, but 2⋅561719230845 = 1123438461690 is not.

Almost surely, 2^561719230845 is an apocalyptic number.

It is an amenable number.

561719230845 is a deficient number, since it is larger than the sum of its proper divisors (361951529475).

561719230845 is a wasteful number, since it uses less digits than its factorization.

561719230845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975485.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 561719230845 in words is "five hundred sixty-one billion, seven hundred nineteen million, two hundred thirty thousand, eight hundred forty-five".