6489018249 has 16 divisors (see below), whose sum is σ = 9890884608. Its totient is φ = 3706939152.

The previous prime is 6489018247. The next prime is 6489018257. The reversal of 6489018249 is 9428109846.

It is not a de Polignac number, because 6489018249 - 2¹ = 6489018247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6489018241) 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, 32914 + ... + 118580.

It is an arithmetic number, because the mean of its divisors is an integer number (618180288).

Almost surely, 2^6489018249 is an apocalyptic number.

It is an amenable number.

6489018249 is a deficient number, since it is larger than the sum of its proper divisors (3401866359).

6489018249 is a wasteful number, since it uses less digits than its factorization.

6489018249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89284.

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 6489018249 is about 80554.4427638848. The cubic root of 6489018249 is about 1865.2039729279.

The spelling of 6489018249 in words is "six billion, four hundred eighty-nine million, eighteen thousand, two hundred forty-nine".