6639473277361 has 8 divisors (see below), whose sum is σ = 6752448574560. Its totient is φ = 6526512708672.

The previous prime is 6639473277337. The next prime is 6639473277383. The reversal of 6639473277361 is 1637723749366.

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 6639473277361 - 2⁵ = 6639473277329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6639473277293 and 6639473277302.

It is not an unprimeable number, because it can be changed into a prime (6639473275361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2770975 + ... + 4577908.

It is an arithmetic number, because the mean of its divisors is an integer number (844056071820).

Almost surely, 2^{6639473277361} is an apocalyptic number.

It is an amenable number.

6639473277361 is a deficient number, since it is larger than the sum of its proper divisors (112975297199).

6639473277361 is a wasteful number, since it uses less digits than its factorization.

6639473277361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7364255.

The product of its digits is 144027072, while the sum is 64.

The spelling of 6639473277361 in words is "six trillion, six hundred thirty-nine billion, four hundred seventy-three million, two hundred seventy-seven thousand, three hundred sixty-one".