8659610545 has 4 divisors (see below), whose sum is σ = 10391532660. Its totient is φ = 6927688432.

The previous prime is 8659610543. The next prime is 8659610591. The reversal of 8659610545 is 5450169568.

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 2400902001 + 6258708544 = 48999^2 + 79112^2 .

It is a cyclic number.

It is not a de Polignac number, because 8659610545 - 2¹ = 8659610543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8659610543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865961050 + ... + 865961059.

It is an arithmetic number, because the mean of its divisors is an integer number (2597883165).

Almost surely, 2^8659610545 is an apocalyptic number.

It is an amenable number.

8659610545 is a deficient number, since it is larger than the sum of its proper divisors (1731922115).

8659610545 is a wasteful number, since it uses less digits than its factorization.

8659610545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731922114.

The product of its (nonzero) digits is 1296000, while the sum is 49.

The square root of 8659610545 is about 93057.0284556734. The cubic root of 8659610545 is about 2053.5224425576.

The spelling of 8659610545 in words is "eight billion, six hundred fifty-nine million, six hundred ten thousand, five hundred forty-five".