6421674179 has 2 divisors, whose sum is σ = 6421674180. Its totient is φ = 6421674178.

The previous prime is 6421674143. The next prime is 6421674187. The reversal of 6421674179 is 9714761246.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6421674179 is a prime.

It is a super-2 number, since 2×6421674179² = 82475798522470648082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6421674199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3210837089 + 3210837090.

It is an arithmetic number, because the mean of its divisors is an integer number (3210837090).

Almost surely, 2^6421674179 is an apocalyptic number.

6421674179 is a deficient number, since it is larger than the sum of its proper divisors (1).

6421674179 is an equidigital number, since it uses as much as digits as its factorization.

6421674179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 47.

The square root of 6421674179 is about 80135.3491225938. The cubic root of 6421674179 is about 1858.7290599822.

The spelling of 6421674179 in words is "six billion, four hundred twenty-one million, six hundred seventy-four thousand, one hundred seventy-nine".