2181357714 has 8 divisors (see below), whose sum is σ = 4362715440. Its totient is φ = 727119236.

The previous prime is 2181357713. The next prime is 2181357767. The reversal of 2181357714 is 4177531812.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2181357714 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2181357713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181779804 + ... + 181779815.

It is an arithmetic number, because the mean of its divisors is an integer number (545339430).

Almost surely, 2^2181357714 is an apocalyptic number.

2181357714 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2181357714 is a wasteful number, since it uses less digits than its factorization.

2181357714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363559624.

The product of its digits is 47040, while the sum is 39.

The square root of 2181357714 is about 46705.0073760833. The cubic root of 2181357714 is about 1296.9073851952.

The spelling of 2181357714 in words is "two billion, one hundred eighty-one million, three hundred fifty-seven thousand, seven hundred fourteen".