6493081923 has 12 divisors (see below), whose sum is σ = 9387936480. Its totient is φ = 4324548816.

The previous prime is 6493081921. The next prime is 6493081927. The reversal of 6493081923 is 3291803946.

It is a happy number.

It is not a de Polignac number, because 6493081923 - 2¹ = 6493081921 is a prime.

It is a super-2 number, since 2×6493081923² = 84320225717578755858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6493081921) by changing a digit.

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, 337836 + ... + 356537.

It is an arithmetic number, because the mean of its divisors is an integer number (782328040).

Almost surely, 2^6493081923 is an apocalyptic number.

6493081923 is a deficient number, since it is larger than the sum of its proper divisors (2894854557).

6493081923 is a wasteful number, since it uses less digits than its factorization.

6493081923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695418 (or 695415 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 6493081923 is about 80579.6619687623. The cubic root of 6493081923 is about 1865.5932459499.

The spelling of 6493081923 in words is "six billion, four hundred ninety-three million, eighty-one thousand, nine hundred twenty-three".