2124305818 has 12 divisors (see below), whose sum is σ = 3225333258. Its totient is φ = 1049349080.

The previous prime is 2124305791. The next prime is 2124305837. The reversal of 2124305818 is 8185034212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2091507289 + 32798529 = 45733^2 + 5727^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63313 + ... + 90868.

Almost surely, 2^2124305818 is an apocalyptic number.

2124305818 is a deficient number, since it is larger than the sum of its proper divisors (1101027440).

2124305818 is an equidigital number, since it uses as much as digits as its factorization.

2124305818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154349 (or 154266 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 2124305818 is about 46090.1922104909. The cubic root of 2124305818 is about 1285.5007849921.

The spelling of 2124305818 in words is "two billion, one hundred twenty-four million, three hundred five thousand, eight hundred eighteen".