6442213169 has 16 divisors (see below), whose sum is σ = 7753246080. Its totient is φ = 5229100800.

The previous prime is 6442213159. The next prime is 6442213231. The reversal of 6442213169 is 9613122446.

It is not a de Polignac number, because 6442213169 - 2¹⁶ = 6442147633 is a prime.

It is a super-2 number, since 2×6442213169² = 83004221029674045122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6442213159) 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 15 ways as a sum of consecutive naturals, for example, 363887 + ... + 381179.

It is an arithmetic number, because the mean of its divisors is an integer number (484577880).

Almost surely, 2^6442213169 is an apocalyptic number.

It is an amenable number.

6442213169 is a deficient number, since it is larger than the sum of its proper divisors (1311032911).

6442213169 is a wasteful number, since it uses less digits than its factorization.

6442213169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20120.

The product of its digits is 62208, while the sum is 38.

The square root of 6442213169 is about 80263.3986883187. The cubic root of 6442213169 is about 1860.7085951061.

The spelling of 6442213169 in words is "six billion, four hundred forty-two million, two hundred thirteen thousand, one hundred sixty-nine".