2689229863 has 4 divisors (see below), whose sum is σ = 2689839040. Its totient is φ = 2688620688.

The previous prime is 2689229833. The next prime is 2689229941. The reversal of 2689229863 is 3689229862.

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: 3689229862 = 2 ⋅1844614931.

It is a cyclic number.

It is not a de Polignac number, because 2689229863 - 2²⁵ = 2655675431 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 (2689229833) 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, 297918 + ... + 306811.

It is an arithmetic number, because the mean of its divisors is an integer number (672459760).

Almost surely, 2^2689229863 is an apocalyptic number.

2689229863 is a deficient number, since it is larger than the sum of its proper divisors (609177).

2689229863 is an equidigital number, since it uses as much as digits as its factorization.

2689229863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609176.

The product of its digits is 4478976, while the sum is 55.

The square root of 2689229863 is about 51857.7849796923. The cubic root of 2689229863 is about 1390.6226810064.

Subtracting 2689229863 from its reverse (3689229862), we obtain a palindrome (999999999).

The spelling of 2689229863 in words is "two billion, six hundred eighty-nine million, two hundred twenty-nine thousand, eight hundred sixty-three".