4644423123 has 4 divisors (see below), whose sum is σ = 6192564168. Its totient is φ = 3096282080.

The previous prime is 4644423107. The next prime is 4644423151. The reversal of 4644423123 is 3213244464.

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

It is a cyclic number.

It is not a de Polignac number, because 4644423123 - 2⁴ = 4644423107 is a prime.

It is a super-2 number, since 2×4644423123² = 43141332290914146258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4644423523) 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, 774070518 + ... + 774070523.

It is an arithmetic number, because the mean of its divisors is an integer number (1548141042).

Almost surely, 2^4644423123 is an apocalyptic number.

4644423123 is a deficient number, since it is larger than the sum of its proper divisors (1548141045).

4644423123 is a wasteful number, since it uses less digits than its factorization.

4644423123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548141044.

The product of its digits is 55296, while the sum is 33.

The square root of 4644423123 is about 68150.0045707996. The cubic root of 4644423123 is about 1668.4399983787.

Adding to 4644423123 its reverse (3213244464), we get a palindrome (7857667587).

The spelling of 4644423123 in words is "four billion, six hundred forty-four million, four hundred twenty-three thousand, one hundred twenty-three".