6289344065 has 4 divisors (see below), whose sum is σ = 7547212884. Its totient is φ = 5031475248.

The previous prime is 6289344053. The next prime is 6289344091. The reversal of 6289344065 is 5604439826.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2387592769 + 3901751296 = 48863^2 + 62464^2 .

It is a cyclic number.

It is not a de Polignac number, because 6289344065 - 2⁴ = 6289344049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628934402 + ... + 628934411.

It is an arithmetic number, because the mean of its divisors is an integer number (1886803221).

Almost surely, 2^6289344065 is an apocalyptic number.

It is an amenable number.

6289344065 is a deficient number, since it is larger than the sum of its proper divisors (1257868819).

6289344065 is a wasteful number, since it uses less digits than its factorization.

6289344065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257868818.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The square root of 6289344065 is about 79305.3848423926. The cubic root of 6289344065 is about 1845.8728610291.

The spelling of 6289344065 in words is "six billion, two hundred eighty-nine million, three hundred forty-four thousand, sixty-five".