1818382011 has 8 divisors (see below), whose sum is σ = 2453720640. Its totient is φ = 1197649032.

The previous prime is 1818381997. The next prime is 1818382091. The reversal of 1818382011 is 1102838181.

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

It is not a de Polignac number, because 1818382011 - 2⁷ = 1818381883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1818382091) 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, 3651121 + ... + 3651618.

It is an arithmetic number, because the mean of its divisors is an integer number (306715080).

Almost surely, 2^1818382011 is an apocalyptic number.

1818382011 is a deficient number, since it is larger than the sum of its proper divisors (635338629).

1818382011 is an equidigital number, since it uses as much as digits as its factorization.

1818382011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7302825.

The product of its (nonzero) digits is 3072, while the sum is 33.

The square root of 1818382011 is about 42642.4906753815. The cubic root of 1818382011 is about 1220.5672384614.

The spelling of 1818382011 in words is "one billion, eight hundred eighteen million, three hundred eighty-two thousand, eleven".