409171033543 has 4 divisors (see below), whose sum is σ = 409174304968. Its totient is φ = 409167762120.

The previous prime is 409171033529. The next prime is 409171033549. The reversal of 409171033543 is 345330171904.

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 409171033543 - 2⁹ = 409171033031 is a prime.

It is a super-2 number, since 2×409171033543² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 409171033496 and 409171033505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409171033549) 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, 1440321 + ... + 1700842.

It is an arithmetic number, because the mean of its divisors is an integer number (102293576242).

Almost surely, 2^409171033543 is an apocalyptic number.

409171033543 is a deficient number, since it is larger than the sum of its proper divisors (3271425).

409171033543 is a wasteful number, since it uses less digits than its factorization.

409171033543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271424.

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 409171033543 in words is "four hundred nine billion, one hundred seventy-one million, thirty-three thousand, five hundred forty-three".