2179984473 has 24 divisors (see below), whose sum is σ = 3269895720. Its totient is φ = 1398435840.

The previous prime is 2179984441. The next prime is 2179984481. The reversal of 2179984473 is 3744899712.

2179984473 is a `hidden beast` number, since 2 + 1 + 7 + 99 + 84 + 473 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 135769104 + 2044215369 = 11652^2 + 45213^2 .

It is not a de Polignac number, because 2179984473 - 2⁵ = 2179984441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2179982473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13528 + ... + 67401.

It is an arithmetic number, because the mean of its divisors is an integer number (136245655).

Almost surely, 2^2179984473 is an apocalyptic number.

It is an amenable number.

2179984473 is a deficient number, since it is larger than the sum of its proper divisors (1089911247).

2179984473 is a wasteful number, since it uses less digits than its factorization.

2179984473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81049 (or 81046 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 2179984473 is about 46690.3038435177. The cubic root of 2179984473 is about 1296.6351785414.

The spelling of 2179984473 in words is "two billion, one hundred seventy-nine million, nine hundred eighty-four thousand, four hundred seventy-three".