324384381621 has 12 divisors (see below), whose sum is σ = 496117289772. Its totient is φ = 203535298176.

The previous prime is 324384381589. The next prime is 324384381677. The reversal of 324384381621 is 126183483423.

324384381621 is a `hidden beast` number, since 3 + 24 + 38 + 438 + 162 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 255575747025 + 68808634596 = 505545^2 + 262314^2 .

It is not a de Polignac number, because 324384381621 - 2⁵ = 324384381589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324384381221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1060079526 + ... + 1060079831.

It is an arithmetic number, because the mean of its divisors is an integer number (41343107481).

Almost surely, 2^324384381621 is an apocalyptic number.

It is an amenable number.

324384381621 is a deficient number, since it is larger than the sum of its proper divisors (171732908151).

324384381621 is a wasteful number, since it uses less digits than its factorization.

324384381621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120159380 (or 2120159377 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The spelling of 324384381621 in words is "three hundred twenty-four billion, three hundred eighty-four million, three hundred eighty-one thousand, six hundred twenty-one".