6613813864 has 32 divisors (see below), whose sum is σ = 14200920000. Its totient is φ = 2828799360.

The previous prime is 6613813859. The next prime is 6613813867. The reversal of 6613813864 is 4683183166.

It is a super-2 number, since 2×6613813864² = 87485067655277220992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6613813867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90397 + ... + 146284.

It is an arithmetic number, because the mean of its divisors is an integer number (443778750).

Almost surely, 2^6613813864 is an apocalyptic number.

It is an amenable number.

6613813864 is an abundant number, since it is smaller than the sum of its proper divisors (7587106136).

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

6613813864 is a wasteful number, since it uses less digits than its factorization.

6613813864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237193 (or 237189 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 6613813864 is about 81325.3580625379. The cubic root of 6613813864 is about 1877.0852168728.

The spelling of 6613813864 in words is "six billion, six hundred thirteen million, eight hundred thirteen thousand, eight hundred sixty-four".