2698869889 has 4 divisors (see below), whose sum is σ = 2785930240. Its totient is φ = 2611809540.

The previous prime is 2698869883. The next prime is 2698869911. The reversal of 2698869889 is 9889688962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9889688962 = 2 ⋅4944844481.

It is a cyclic number.

It is not a de Polignac number, because 2698869889 - 2⁵ = 2698869857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2698869883) 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, 43530129 + ... + 43530190.

It is an arithmetic number, because the mean of its divisors is an integer number (696482560).

Almost surely, 2^2698869889 is an apocalyptic number.

It is an amenable number.

2698869889 is a deficient number, since it is larger than the sum of its proper divisors (87060351).

2698869889 is an equidigital number, since it uses as much as digits as its factorization.

2698869889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87060350.

The product of its digits is 214990848, while the sum is 73.

The square root of 2698869889 is about 51950.6485907539. The cubic root of 2698869889 is about 1392.2823448016.

The spelling of 2698869889 in words is "two billion, six hundred ninety-eight million, eight hundred sixty-nine thousand, eight hundred eighty-nine".