6864559316 has 12 divisors (see below), whose sum is σ = 12305978580. Its totient is φ = 3348565440.

The previous prime is 6864559313. The next prime is 6864559379. The reversal of 6864559316 is 6139554686.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2026800400 + 4837758916 = 45020^2 + 69554^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6864559313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20928371 + ... + 20928698.

It is an arithmetic number, because the mean of its divisors is an integer number (1025498215).

Almost surely, 2^6864559316 is an apocalyptic number.

It is an amenable number.

6864559316 is a deficient number, since it is larger than the sum of its proper divisors (5441419264).

6864559316 is a wasteful number, since it uses less digits than its factorization.

6864559316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41857114 (or 41857112 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 53.

The square root of 6864559316 is about 82852.6361439393. The cubic root of 6864559316 is about 1900.5131869536.

The spelling of 6864559316 in words is "six billion, eight hundred sixty-four million, five hundred fifty-nine thousand, three hundred sixteen".