328583421869 has 2 divisors, whose sum is σ = 328583421870. Its totient is φ = 328583421868.

The previous prime is 328583421839. The next prime is 328583421893. The reversal of 328583421869 is 968124385823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218707746244 + 109875675625 = 467662^2 + 331475^2 .

It is a cyclic number.

It is not a de Polignac number, because 328583421869 - 2⁸ = 328583421613 is a prime.

It is a super-2 number, since 2×328583421869² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328583421839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164291710934 + 164291710935.

It is an arithmetic number, because the mean of its divisors is an integer number (164291710935).

Almost surely, 2^328583421869 is an apocalyptic number.

It is an amenable number.

328583421869 is a deficient number, since it is larger than the sum of its proper divisors (1).

328583421869 is an equidigital number, since it uses as much as digits as its factorization.

328583421869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19906560, while the sum is 59.

The spelling of 328583421869 in words is "three hundred twenty-eight billion, five hundred eighty-three million, four hundred twenty-one thousand, eight hundred sixty-nine".