408321375841 has 2 divisors, whose sum is σ = 408321375842. Its totient is φ = 408321375840.

The previous prime is 408321375829. The next prime is 408321375883. The reversal of 408321375841 is 148573123804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402563601441 + 5757774400 = 634479^2 + 75880^2 .

It is a cyclic number.

It is not a de Polignac number, because 408321375841 - 2²³ = 408312987233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 408321375791 and 408321375800.

It is not a weakly prime, because it can be changed into another prime (408321375811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204160687920 + 204160687921.

It is an arithmetic number, because the mean of its divisors is an integer number (204160687921).

Almost surely, 2^408321375841 is an apocalyptic number.

It is an amenable number.

408321375841 is a deficient number, since it is larger than the sum of its proper divisors (1).

408321375841 is an equidigital number, since it uses as much as digits as its factorization.

408321375841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 408321375841 in words is "four hundred eight billion, three hundred twenty-one million, three hundred seventy-five thousand, eight hundred forty-one".