6164350649 has 4 divisors (see below), whose sum is σ = 6165214836. Its totient is φ = 6163486464.

The previous prime is 6164350597. The next prime is 6164350657. The reversal of 6164350649 is 9460534616.

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 1804125625 + 4360225024 = 42475^2 + 66032^2 .

It is a cyclic number.

It is not a de Polignac number, because 6164350649 - 2⁸ = 6164350393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6164350949) by changing a digit.

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, 421304 + ... + 435689.

It is an arithmetic number, because the mean of its divisors is an integer number (1541303709).

Almost surely, 2^6164350649 is an apocalyptic number.

It is an amenable number.

6164350649 is a deficient number, since it is larger than the sum of its proper divisors (864187).

6164350649 is an equidigital number, since it uses as much as digits as its factorization.

6164350649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864186.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 6164350649 is about 78513.3787898598. The cubic root of 6164350649 is about 1833.5627537431.

The spelling of 6164350649 in words is "six billion, one hundred sixty-four million, three hundred fifty thousand, six hundred forty-nine".