4642105689 has 27 divisors (see below), whose sum is σ = 7264887903. Its totient is φ = 2855045232.

The previous prime is 4642105681. The next prime is 4642105691. The reversal of 4642105689 is 9865012464.

The square root of 4642105689 is 68133.

It is a perfect power (a square), and thus also a powerful number.

4642105689 is a `hidden beast` number, since 4 + 64 + 21 + 0 + 568 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 686702025 + 3955403664 = 26205^2 + 62892^2 .

It is not a de Polignac number, because 4642105689 - 2³ = 4642105681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4642105681) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2656314 + ... + 2658060.

Almost surely, 2^4642105689 is an apocalyptic number.

4642105689 is the 68133-rd square number.

4642105689 is the 34067-th centered octagonal number.

It is an amenable number.

4642105689 is a deficient number, since it is larger than the sum of its proper divisors (2622782214).

4642105689 is an equidigital number, since it uses as much as digits as its factorization.

4642105689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526 (or 1763 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The cubic root of 4642105689 is about 1668.1624509671.

The spelling of 4642105689 in words is "four billion, six hundred forty-two million, one hundred five thousand, six hundred eighty-nine".