6693064391 has 8 divisors (see below), whose sum is σ = 7215382944. Its totient is φ = 6171812640.

The previous prime is 6693064381. The next prime is 6693064409. The reversal of 6693064391 is 1934603966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6693064391 - 2¹⁴ = 6693048007 is a prime.

It is a super-2 number, since 2×6693064391² = 89594221884144401762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6693064381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253640 + ... + 278781.

It is an arithmetic number, because the mean of its divisors is an integer number (901922868).

Almost surely, 2^6693064391 is an apocalyptic number.

6693064391 is a deficient number, since it is larger than the sum of its proper divisors (522318553).

6693064391 is a wasteful number, since it uses less digits than its factorization.

6693064391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533401.

The product of its (nonzero) digits is 629856, while the sum is 47.

The square root of 6693064391 is about 81811.1507742068. The cubic root of 6693064391 is about 1884.5529071665.

The spelling of 6693064391 in words is "six billion, six hundred ninety-three million, sixty-four thousand, three hundred ninety-one".