6421169058479 has 4 divisors (see below), whose sum is σ = 7338478923984. Its totient is φ = 5503859192976.

The previous prime is 6421169058457. The next prime is 6421169058481. The reversal of 6421169058479 is 9748509611246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6421169058479 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 (6421169052479) 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, 458654932742 + ... + 458654932755.

It is an arithmetic number, because the mean of its divisors is an integer number (1834619730996).

Almost surely, 2^{6421169058479} is an apocalyptic number.

6421169058479 is a deficient number, since it is larger than the sum of its proper divisors (917309865505).

6421169058479 is an equidigital number, since it uses as much as digits as its factorization.

6421169058479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917309865504.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 6421169058479 in words is "six trillion, four hundred twenty-one billion, one hundred sixty-nine million, fifty-eight thousand, four hundred seventy-nine".