405513445223 has 4 divisors (see below), whose sum is σ = 406181507520. Its totient is φ = 404845382928.

The previous prime is 405513445193. The next prime is 405513445243. The reversal of 405513445223 is 322544315504.

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

It is a cyclic number.

It is not a de Polignac number, because 405513445223 - 2¹⁸ = 405513183079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405513445243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334030238 + ... + 334031451.

It is an arithmetic number, because the mean of its divisors is an integer number (101545376880).

Almost surely, 2^405513445223 is an apocalyptic number.

405513445223 is a deficient number, since it is larger than the sum of its proper divisors (668062297).

405513445223 is an equidigital number, since it uses as much as digits as its factorization.

405513445223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668062296.

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 405513445223 in words is "four hundred five billion, five hundred thirteen million, four hundred forty-five thousand, two hundred twenty-three".