2184921057 has 8 divisors (see below), whose sum is σ = 3178067040. Its totient is φ = 1324194560.

The previous prime is 2184921019. The next prime is 2184921059. The reversal of 2184921057 is 7501294812.

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

It is a cyclic number.

It is not a de Polignac number, because 2184921057 - 2¹⁸ = 2184658913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2184921059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33104832 + ... + 33104897.

It is an arithmetic number, because the mean of its divisors is an integer number (397258380).

Almost surely, 2^2184921057 is an apocalyptic number.

It is an amenable number.

2184921057 is a deficient number, since it is larger than the sum of its proper divisors (993145983).

2184921057 is a wasteful number, since it uses less digits than its factorization.

2184921057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66209743.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2184921057 is about 46743.1391436219. The cubic root of 2184921057 is about 1297.6131859488.

The spelling of 2184921057 in words is "two billion, one hundred eighty-four million, nine hundred twenty-one thousand, fifty-seven".