6359817977221 has 8 divisors (see below), whose sum is σ = 6739475076000. Its totient is φ = 5984653862160.

The previous prime is 6359817977167. The next prime is 6359817977237. The reversal of 6359817977221 is 1227797189536.

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 6359817977221 - 2²⁷ = 6359683759493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6359817977021) 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, 1123243015 + ... + 1123248676.

It is an arithmetic number, because the mean of its divisors is an integer number (842434384500).

Almost surely, 2^{6359817977221} is an apocalyptic number.

It is an amenable number.

6359817977221 is a deficient number, since it is larger than the sum of its proper divisors (379657098779).

6359817977221 is a wasteful number, since it uses less digits than its factorization.

6359817977221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246491859.

The product of its digits is 80015040, while the sum is 67.

The spelling of 6359817977221 in words is "six trillion, three hundred fifty-nine billion, eight hundred seventeen million, nine hundred seventy-seven thousand, two hundred twenty-one".