2689469459 has 4 divisors (see below), whose sum is σ = 2689816416. Its totient is φ = 2689122504.

The previous prime is 2689469429. The next prime is 2689469467. The reversal of 2689469459 is 9549649862.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9549649862 = 2 ⋅4774824931.

It is a cyclic number.

It is not a de Polignac number, because 2689469459 - 2¹⁶ = 2689403923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2689469429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161579 + ... + 177444.

It is an arithmetic number, because the mean of its divisors is an integer number (672454104).

Almost surely, 2^2689469459 is an apocalyptic number.

2689469459 is a deficient number, since it is larger than the sum of its proper divisors (346957).

2689469459 is an equidigital number, since it uses as much as digits as its factorization.

2689469459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346956.

The product of its digits is 33592320, while the sum is 62.

The square root of 2689469459 is about 51860.0950539044. The cubic root of 2689469459 is about 1390.6639787948.

The spelling of 2689469459 in words is "two billion, six hundred eighty-nine million, four hundred sixty-nine thousand, four hundred fifty-nine".