6411685329 has 135 divisors (see below), whose sum is σ = 11800346283. Its totient is φ = 3459153600.

The previous prime is 6411685277. The next prime is 6411685331. The reversal of 6411685329 is 9235861146.

The square root of 6411685329 is 80073.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 308950929 + 6102734400 = 17577^2 + 78120^2 .

It is not a de Polignac number, because 6411685329 - 2⁹ = 6411684817 is a prime.

It is a super-2 number, since 2×6411685329² = 82219417516227676482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6411685349) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 156382549 + ... + 156382589.

Almost surely, 2^6411685329 is an apocalyptic number.

6411685329 is the 80073-rd square number.

6411685329 is the 40037-th centered octagonal number.

It is an amenable number.

6411685329 is a deficient number, since it is larger than the sum of its proper divisors (5388660954).

6411685329 is an equidigital number, since it uses as much as digits as its factorization.

6411685329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 82 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The cubic root of 6411685329 is about 1857.7648150266.

The spelling of 6411685329 in words is "six billion, four hundred eleven million, six hundred eighty-five thousand, three hundred twenty-nine".