2118053918 has 32 divisors (see below), whose sum is σ = 3475267200. Its totient is φ = 964311264.

The previous prime is 2118053869. The next prime is 2118053933. The reversal of 2118053918 is 8193508112.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 245921 + ... + 254387.

It is an arithmetic number, because the mean of its divisors is an integer number (108602100).

Almost surely, 2^2118053918 is an apocalyptic number.

2118053918 is a deficient number, since it is larger than the sum of its proper divisors (1357213282).

2118053918 is a wasteful number, since it uses less digits than its factorization.

2118053918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8744.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 2118053918 is about 46022.3197807325. The cubic root of 2118053918 is about 1284.2384558406.

The spelling of 2118053918 in words is "two billion, one hundred eighteen million, fifty-three thousand, nine hundred eighteen".