2173573899 has 96 divisors (see below), whose sum is σ = 3976174080. Its totient is φ = 1167566400.

The previous prime is 2173573889. The next prime is 2173573901. The reversal of 2173573899 is 9983753712.

It is not a de Polignac number, because 2173573899 - 2⁷ = 2173573771 is a prime.

It is a super-3 number, since 3×2173573899³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2173573889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1855584 + ... + 1856754.

It is an arithmetic number, because the mean of its divisors is an integer number (41418480).

Almost surely, 2^2173573899 is an apocalyptic number.

2173573899 is a deficient number, since it is larger than the sum of its proper divisors (1802600181).

2173573899 is a wasteful number, since it uses less digits than its factorization.

2173573899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1265 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 2173573899 is about 46621.6033508072. The cubic root of 2173573899 is about 1295.3629467221.

The spelling of 2173573899 in words is "two billion, one hundred seventy-three million, five hundred seventy-three thousand, eight hundred ninety-nine".