6499498843 has 4 divisors (see below), whose sum is σ = 6709160128. Its totient is φ = 6289837560.

The previous prime is 6499498799. The next prime is 6499498849. The reversal of 6499498843 is 3488949946.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6499498843 - 2⁹ = 6499498331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6499498849) 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, 104830596 + ... + 104830657.

It is an arithmetic number, because the mean of its divisors is an integer number (1677290032).

Almost surely, 2^6499498843 is an apocalyptic number.

6499498843 is a deficient number, since it is larger than the sum of its proper divisors (209661285).

6499498843 is a wasteful number, since it uses less digits than its factorization.

6499498843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209661284.

The product of its digits is 53747712, while the sum is 64.

The square root of 6499498843 is about 80619.4693793007. The cubic root of 6499498843 is about 1866.2076137376.

The spelling of 6499498843 in words is "six billion, four hundred ninety-nine million, four hundred ninety-eight thousand, eight hundred forty-three".