1818381911110 has 32 divisors (see below), whose sum is σ = 3466080281952. Its totient is φ = 684476782080.

The previous prime is 1818381911083. The next prime is 1818381911111. The reversal of 1818381911110 is 111191838181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818381911111) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 589080 + ... + 1995940.

It is an arithmetic number, because the mean of its divisors is an integer number (108315008811).

Almost surely, 2^{1818381911110} is an apocalyptic number.

1818381911110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1818381911110 is a deficient number, since it is larger than the sum of its proper divisors (1647698370842).

1818381911110 is a wasteful number, since it uses less digits than its factorization.

1818381911110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414488.

The product of its (nonzero) digits is 13824, while the sum is 43.

The spelling of 1818381911110 in words is "one trillion, eight hundred eighteen billion, three hundred eighty-one million, nine hundred eleven thousand, one hundred ten".