2005571673 has 12 divisors (see below), whose sum is σ = 3310785088. Its totient is φ = 1146040920.

The previous prime is 2005571611. The next prime is 2005571693. The reversal of 2005571673 is 3761755002.

2005571673 is a `hidden beast` number, since 20 + 0 + 5 + 571 + 67 + 3 = 666.

It is not a de Polignac number, because 2005571673 - 2¹⁷ = 2005440601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005571693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15917173 + ... + 15917298.

Almost surely, 2^2005571673 is an apocalyptic number.

It is an amenable number.

2005571673 is a deficient number, since it is larger than the sum of its proper divisors (1305213415).

2005571673 is a wasteful number, since it uses less digits than its factorization.

2005571673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31834484 (or 31834481 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 2005571673 is about 44783.6094235380. The cubic root of 2005571673 is about 1261.0899431334.

The spelling of 2005571673 in words is "two billion, five million, five hundred seventy-one thousand, six hundred seventy-three".