3206416678609 has 3 divisors (see below), whose sum is σ = 3206418469257. Its totient is φ = 3206414887962.

The previous prime is 3206416678603. The next prime is 3206416678639. The reversal of 3206416678609 is 9068766146023.

It is a happy number.

The square root of 3206416678609 is 1790647.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 3206416678609 - 2³ = 3206416678601 is a prime.

It is a super-2 number, since 2×3206416678609² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3206416678601) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 895324 + ... + 2685970.

It is an arithmetic number, because the mean of its divisors is an integer number (1068806156419).

Almost surely, 2^{3206416678609} is an apocalyptic number.

3206416678609 is the 1790647-th square number.

3206416678609 is the 895324-th centered octagonal number.

It is an amenable number.

3206416678609 is a deficient number, since it is larger than the sum of its proper divisors (1790648).

3206416678609 is an frugal number, since it uses more digits than its factorization.

3206416678609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581294 (or 1790647 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 3206416678609 in words is "three trillion, two hundred six billion, four hundred sixteen million, six hundred seventy-eight thousand, six hundred nine".