4644474665227 has 4 divisors (see below), whose sum is σ = 4645077929800. Its totient is φ = 4643871400656.

The previous prime is 4644474665191. The next prime is 4644474665239. The reversal of 4644474665227 is 7225664744464.

It is a happy number.

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-4644474665227 is a prime.

It is a super-2 number, since 2×4644474665227² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4644474665297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301620738 + ... + 301636135.

It is an arithmetic number, because the mean of its divisors is an integer number (1161269482450).

Almost surely, 2^{4644474665227} is an apocalyptic number.

4644474665227 is a deficient number, since it is larger than the sum of its proper divisors (603264573).

4644474665227 is an equidigital number, since it uses as much as digits as its factorization.

4644474665227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603264572.

The product of its digits is 216760320, while the sum is 61.

The spelling of 4644474665227 in words is "four trillion, six hundred forty-four billion, four hundred seventy-four million, six hundred sixty-five thousand, two hundred twenty-seven".