2118864603918 has 8 divisors (see below), whose sum is σ = 4237729207848. Its totient is φ = 706288201304.

The previous prime is 2118864603917. The next prime is 2118864603937. The reversal of 2118864603918 is 8193064688112.

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

2118864603918 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118864603917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176572050321 + ... + 176572050332.

It is an arithmetic number, because the mean of its divisors is an integer number (529716150981).

Almost surely, 2^{2118864603918} is an apocalyptic number.

2118864603918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2118864603918 is a wasteful number, since it uses less digits than its factorization.

2118864603918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353144100658.

The product of its (nonzero) digits is 3981312, while the sum is 57.

The spelling of 2118864603918 in words is "two trillion, one hundred eighteen billion, eight hundred sixty-four million, six hundred three thousand, nine hundred eighteen".