6494690784 has 24 divisors (see below), whose sum is σ = 17048563560. Its totient is φ = 2164896896.

The previous prime is 6494690777. The next prime is 6494690833. The reversal of 6494690784 is 4870964946.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33826419 + ... + 33826610.

It is an arithmetic number, because the mean of its divisors is an integer number (710356815).

Almost surely, 2^6494690784 is an apocalyptic number.

It is an amenable number.

6494690784 is an abundant number, since it is smaller than the sum of its proper divisors (10553872776).

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

6494690784 is a wasteful number, since it uses less digits than its factorization.

6494690784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67653042 (or 67653034 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The square root of 6494690784 is about 80589.6443967834. The cubic root of 6494690784 is about 1865.7473192843.

The spelling of 6494690784 in words is "six billion, four hundred ninety-four million, six hundred ninety thousand, seven hundred eighty-four".