2018181802 has 16 divisors (see below), whose sum is σ = 3725874432. Its totient is φ = 798401520.

The previous prime is 2018181791. The next prime is 2018181829. The reversal of 2018181802 is 2081818102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5544274 + ... + 5544637.

It is an arithmetic number, because the mean of its divisors is an integer number (232867152).

Almost surely, 2^2018181802 is an apocalyptic number.

2018181802 is a deficient number, since it is larger than the sum of its proper divisors (1707692630).

2018181802 is a wasteful number, since it uses less digits than its factorization.

2018181802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11088933.

The product of its (nonzero) digits is 2048, while the sum is 31.

The square root of 2018181802 is about 44924.1783675562. The cubic root of 2018181802 is about 1263.7274776500.

Adding to 2018181802 its reverse (2081818102), we get a palindrome (4099999904).

The spelling of 2018181802 in words is "two billion, eighteen million, one hundred eighty-one thousand, eight hundred two".