8961749817305 has 4 divisors (see below), whose sum is σ = 10754099780772. Its totient is φ = 7169399853840.

The previous prime is 8961749817259. The next prime is 8961749817331. The reversal of 8961749817305 is 5037189471698.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4311503405056 + 4650246412249 = 2076416^2 + 2156443^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8961749817305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896174981726 + ... + 896174981735.

It is an arithmetic number, because the mean of its divisors is an integer number (2688524945193).

Almost surely, 2^{8961749817305} is an apocalyptic number.

It is an amenable number.

8961749817305 is a deficient number, since it is larger than the sum of its proper divisors (1792349963467).

8961749817305 is a wasteful number, since it uses less digits than its factorization.

8961749817305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792349963466.

The product of its (nonzero) digits is 91445760, while the sum is 68.

The spelling of 8961749817305 in words is "eight trillion, nine hundred sixty-one billion, seven hundred forty-nine million, eight hundred seventeen thousand, three hundred five".