405531245353 has 4 divisors (see below), whose sum is σ = 436725956548. Its totient is φ = 374336534160.

The previous prime is 405531245323. The next prime is 405531245359. The reversal of 405531245353 is 353542135504.

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 38552144409 + 366979100944 = 196347^2 + 605788^2 .

It is a cyclic number.

It is not a de Polignac number, because 405531245353 - 2⁵ = 405531245321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405531245359) 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, 15597355578 + ... + 15597355603.

It is an arithmetic number, because the mean of its divisors is an integer number (109181489137).

Almost surely, 2^405531245353 is an apocalyptic number.

It is an amenable number.

405531245353 is a deficient number, since it is larger than the sum of its proper divisors (31194711195).

405531245353 is a wasteful number, since it uses less digits than its factorization.

405531245353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31194711194.

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 405531245353 in words is "four hundred five billion, five hundred thirty-one million, two hundred forty-five thousand, three hundred fifty-three".