6494935813 has 16 divisors (see below), whose sum is σ = 6880273920. Its totient is φ = 6114064896.

The previous prime is 6494935807. The next prime is 6494935841. The reversal of 6494935813 is 3185394946.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6494935813 - 2¹⁷ = 6494804741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6494995813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2685981 + ... + 2688397.

It is an arithmetic number, because the mean of its divisors is an integer number (430017120).

Almost surely, 2^6494935813 is an apocalyptic number.

It is an amenable number.

6494935813 is a deficient number, since it is larger than the sum of its proper divisors (385338107).

6494935813 is a wasteful number, since it uses less digits than its factorization.

6494935813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276.

The product of its digits is 2799360, while the sum is 52.

The square root of 6494935813 is about 80591.1646087833. The cubic root of 6494935813 is about 1865.7707823696.

The spelling of 6494935813 in words is "six billion, four hundred ninety-four million, nine hundred thirty-five thousand, eight hundred thirteen".