2658069289 has 4 divisors (see below), whose sum is σ = 2814426324. Its totient is φ = 2501712256.

The previous prime is 2658069257. The next prime is 2658069367. The reversal of 2658069289 is 9829608562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9829608562 = 2 ⋅4914804281.

It can be written as a sum of positive squares in 2 ways, for example, as 2162250000 + 495819289 = 46500^2 + 22267^2 .

It is a cyclic number.

It is not a de Polignac number, because 2658069289 - 2⁵ = 2658069257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2658060289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78178492 + ... + 78178525.

It is an arithmetic number, because the mean of its divisors is an integer number (703606581).

Almost surely, 2^2658069289 is an apocalyptic number.

It is an amenable number.

2658069289 is a deficient number, since it is larger than the sum of its proper divisors (156357035).

2658069289 is a wasteful number, since it uses less digits than its factorization.

2658069289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156357034.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The square root of 2658069289 is about 51556.4669949367. The cubic root of 2658069289 is about 1385.2306720887.

The spelling of 2658069289 in words is "two billion, six hundred fifty-eight million, sixty-nine thousand, two hundred eighty-nine".