409054405173 has 4 divisors (see below), whose sum is σ = 545405873568. Its totient is φ = 272702936780.

The previous prime is 409054405171. The next prime is 409054405223. The reversal of 409054405173 is 371504450904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 409054405173 - 2¹ = 409054405171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409054405171) 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, 68175734193 + ... + 68175734198.

It is an arithmetic number, because the mean of its divisors is an integer number (136351468392).

Almost surely, 2^409054405173 is an apocalyptic number.

It is an amenable number.

409054405173 is a deficient number, since it is larger than the sum of its proper divisors (136351468395).

409054405173 is a wasteful number, since it uses less digits than its factorization.

409054405173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136351468394.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 409054405173 in words is "four hundred nine billion, fifty-four million, four hundred five thousand, one hundred seventy-three".