2173427712 has 168 divisors, whose sum is σ = 6440484960. Its totient is φ = 705822720.

The previous prime is 2173427699. The next prime is 2173427717. The reversal of 2173427712 is 2177243712.

2173427712 is a `hidden beast` number, since 217 + 3 + 427 + 7 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173427717) 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, 3022489 + ... + 3023207.

It is an arithmetic number, because the mean of its divisors is an integer number (38336220).

Almost surely, 2^2173427712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2173427712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3220242480).

2173427712 is an abundant number, since it is smaller than the sum of its proper divisors (4267057248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2173427712 is an equidigital number, since it uses as much as digits as its factorization.

2173427712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 765 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 2173427712 is about 46620.0355212220. The cubic root of 2173427712 is about 1295.3339055396. Note that the first 3 decimals are identical.

The spelling of 2173427712 in words is "two billion, one hundred seventy-three million, four hundred twenty-seven thousand, seven hundred twelve".