6493081968 has 60 divisors (see below), whose sum is σ = 18177305328. Its totient is φ = 2163682560.

The previous prime is 6493081927. The next prime is 6493082003. The reversal of 6493081968 is 8691803946.

It is a super-2 number, since 2×6493081968² = 84320226886333506048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 696796 + ... + 706052.

Almost surely, 2^6493081968 is an apocalyptic number.

It is an amenable number.

6493081968 is an abundant number, since it is smaller than the sum of its proper divisors (11684223360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6493081968 is a wasteful number, since it uses less digits than its factorization.

6493081968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14142 (or 14133 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 6493081968 is about 80579.6622479891. The cubic root of 6493081968 is about 1865.5932502597.

The spelling of 6493081968 in words is "six billion, four hundred ninety-three million, eighty-one thousand, nine hundred sixty-eight".