8745132961 has 4 divisors (see below), whose sum is σ = 9046689300. Its totient is φ = 8443576624.

The previous prime is 8745132959. The next prime is 8745132997. The reversal of 8745132961 is 1692315478.

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 6180318225 + 2564814736 = 78615^2 + 50644^2 .

It is a cyclic number.

It is not a de Polignac number, because 8745132961 - 2¹ = 8745132959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8745132931) 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, 150778126 + ... + 150778183.

It is an arithmetic number, because the mean of its divisors is an integer number (2261672325).

Almost surely, 2^8745132961 is an apocalyptic number.

It is an amenable number.

8745132961 is a deficient number, since it is larger than the sum of its proper divisors (301556339).

8745132961 is a wasteful number, since it uses less digits than its factorization.

8745132961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301556338.

The product of its digits is 362880, while the sum is 46.

The square root of 8745132961 is about 93515.4156329319. The cubic root of 8745132961 is about 2060.2605132092.

The spelling of 8745132961 in words is "eight billion, seven hundred forty-five million, one hundred thirty-two thousand, nine hundred sixty-one".