5646323121 has 4 divisors (see below), whose sum is σ = 7528430832. Its totient is φ = 3764215412.

The previous prime is 5646323071. The next prime is 5646323129. The reversal of 5646323121 is 1213236465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5646323121 - 2²³ = 5637934513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5646323129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941053851 + ... + 941053856.

It is an arithmetic number, because the mean of its divisors is an integer number (1882107708).

Almost surely, 2^5646323121 is an apocalyptic number.

It is an amenable number.

5646323121 is a deficient number, since it is larger than the sum of its proper divisors (1882107711).

5646323121 is a wasteful number, since it uses less digits than its factorization.

5646323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882107710.

The product of its digits is 25920, while the sum is 33.

The square root of 5646323121 is about 75142.0196760774. The cubic root of 5646323121 is about 1780.6910502200.

Adding to 5646323121 its reverse (1213236465), we get a palindrome (6859559586).

The spelling of 5646323121 in words is "five billion, six hundred forty-six million, three hundred twenty-three thousand, one hundred twenty-one".