8946861653 has 4 divisors (see below), whose sum is σ = 8947052268. Its totient is φ = 8946671040.

The previous prime is 8946861641. The next prime is 8946861691. The reversal of 8946861653 is 3561686498.

It is a happy number.

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 8915702929 + 31158724 = 94423^2 + 5582^2 .

It is a cyclic number.

It is not a de Polignac number, because 8946861653 - 2²⁴ = 8930084437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8946861613) 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, 30125 + ... + 137117.

It is an arithmetic number, because the mean of its divisors is an integer number (2236763067).

Almost surely, 2^8946861653 is an apocalyptic number.

It is an amenable number.

8946861653 is a deficient number, since it is larger than the sum of its proper divisors (190615).

8946861653 is a wasteful number, since it uses less digits than its factorization.

8946861653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190614.

The product of its digits is 7464960, while the sum is 56.

The square root of 8946861653 is about 94587.8515085315. The cubic root of 8946861653 is about 2075.9819538163.

The spelling of 8946861653 in words is "eight billion, nine hundred forty-six million, eight hundred sixty-one thousand, six hundred fifty-three".