324428367891 has 4 divisors (see below), whose sum is σ = 432571157192. Its totient is φ = 216285578592.

The previous prime is 324428367881. The next prime is 324428367917. The reversal of 324428367891 is 198763824423.

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

It is not a de Polignac number, because 324428367891 - 2¹⁷ = 324428236819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324428367881) 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, 54071394646 + ... + 54071394651.

It is an arithmetic number, because the mean of its divisors is an integer number (108142789298).

Almost surely, 2^324428367891 is an apocalyptic number.

324428367891 is a deficient number, since it is larger than the sum of its proper divisors (108142789301).

324428367891 is a wasteful number, since it uses less digits than its factorization.

324428367891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108142789300.

The product of its digits is 13934592, while the sum is 57.

The spelling of 324428367891 in words is "three hundred twenty-four billion, four hundred twenty-eight million, three hundred sixty-seven thousand, eight hundred ninety-one".