2173812814 has 32 divisors (see below), whose sum is σ = 3572487936. Its totient is φ = 987586560.

The previous prime is 2173812811. The next prime is 2173812881. The reversal of 2173812814 is 4182183712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173812811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479422 + ... + 483934.

It is an arithmetic number, because the mean of its divisors is an integer number (111640248).

Almost surely, 2^2173812814 is an apocalyptic number.

2173812814 is a deficient number, since it is larger than the sum of its proper divisors (1398675122).

2173812814 is a wasteful number, since it uses less digits than its factorization.

2173812814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020.

The product of its digits is 21504, while the sum is 37.

The square root of 2173812814 is about 46624.1655582167. The cubic root of 2173812814 is about 1295.4104062387.

The spelling of 2173812814 in words is "two billion, one hundred seventy-three million, eight hundred twelve thousand, eight hundred fourteen".