841561023745 has 8 divisors (see below), whose sum is σ = 1087555784616. Its totient is φ = 621460448256.

The previous prime is 841561023703. The next prime is 841561023791. The reversal of 841561023745 is 547320165148.

It can be written as a sum of positive squares in 4 ways, for example, as 110753177616 + 730807846129 = 332796^2 + 854873^2 .

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 841561023745 - 2¹³ = 841561015553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 841561023695 and 841561023704.

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 7 ways as a sum of consecutive naturals, for example, 6473546272 + ... + 6473546401.

It is an arithmetic number, because the mean of its divisors is an integer number (135944473077).

Almost surely, 2^841561023745 is an apocalyptic number.

It is an amenable number.

841561023745 is a deficient number, since it is larger than the sum of its proper divisors (245994760871).

841561023745 is a wasteful number, since it uses less digits than its factorization.

841561023745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12947092691.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 841561023745 in words is "eight hundred forty-one billion, five hundred sixty-one million, twenty-three thousand, seven hundred forty-five".