408454429743361 has 4 divisors (see below), whose sum is σ = 408469448133972. Its totient is φ = 408439411352752.

The previous prime is 408454429743323. The next prime is 408454429743401. The reversal of 408454429743361 is 163347924454804.

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

It can be written as a sum of positive squares in 2 ways, for example, as 332641605556225 + 75812824187136 = 18238465^2 + 8707056^2 .

It is a cyclic number.

It is not a de Polignac number, because 408454429743361 - 2⁷ = 408454429743233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 408454429743293 and 408454429743302.

It is not an unprimeable number, because it can be changed into a prime (408454429743961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7509154510 + ... + 7509208903.

It is an arithmetic number, because the mean of its divisors is an integer number (102117362033493).

It is a 1-persistent number, because it is pandigital, but 2⋅408454429743361 = 816908859486722 is not.

Almost surely, 2^{408454429743361} is an apocalyptic number.

It is an amenable number.

408454429743361 is a deficient number, since it is larger than the sum of its proper divisors (15018390611).

408454429743361 is a wasteful number, since it uses less digits than its factorization.

408454429743361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15018390610.

The product of its (nonzero) digits is 278691840, while the sum is 64.

The spelling of 408454429743361 in words is "four hundred eight trillion, four hundred fifty-four billion, four hundred twenty-nine million, seven hundred forty-three thousand, three hundred sixty-one".