2689280863 has 2 divisors, whose sum is σ = 2689280864. Its totient is φ = 2689280862.

The previous prime is 2689280861. The next prime is 2689280873. The reversal of 2689280863 is 3680829862.

It is a happy number.

2689280863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2689280863 - 2¹ = 2689280861 is a prime.

Together with 2689280861, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2689280863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2689280861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344640431 + 1344640432.

It is an arithmetic number, because the mean of its divisors is an integer number (1344640432).

Almost surely, 2^2689280863 is an apocalyptic number.

2689280863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689280863 is an equidigital number, since it uses as much as digits as its factorization.

2689280863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The square root of 2689280863 is about 51858.2767068093. The cubic root of 2689280863 is about 1390.6314717894.

The spelling of 2689280863 in words is "two billion, six hundred eighty-nine million, two hundred eighty thousand, eight hundred sixty-three".