2646358289 has 16 divisors (see below), whose sum is σ = 2741544960. Its totient is φ = 2552523840.

The previous prime is 2646358283. The next prime is 2646358333. The reversal of 2646358289 is 9828536462.

2646358289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2646358289 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2646358289.

It is not an unprimeable number, because it can be changed into a prime (2646358283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3101987 + ... + 3102839.

It is an arithmetic number, because the mean of its divisors is an integer number (171346560).

Almost surely, 2^2646358289 is an apocalyptic number.

It is an amenable number.

2646358289 is a deficient number, since it is larger than the sum of its proper divisors (95186671).

2646358289 is a wasteful number, since it uses less digits than its factorization.

2646358289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

The product of its digits is 4976640, while the sum is 53.

The square root of 2646358289 is about 51442.7671203640. The cubic root of 2646358289 is about 1383.1933136967.

The spelling of 2646358289 in words is "two billion, six hundred forty-six million, three hundred fifty-eight thousand, two hundred eighty-nine".