2118347804 has 18 divisors (see below), whose sum is σ = 3839354064. Its totient is φ = 1022649040.

The previous prime is 2118347773. The next prime is 2118347809. The reversal of 2118347804 is 4087438112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118347809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311492 + ... + 318219.

It is an arithmetic number, because the mean of its divisors is an integer number (213297448).

Almost surely, 2^2118347804 is an apocalyptic number.

It is an amenable number.

2118347804 is a deficient number, since it is larger than the sum of its proper divisors (1721006260).

2118347804 is a wasteful number, since it uses less digits than its factorization.

2118347804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629773 (or 629742 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 2118347804 is about 46025.5125338111. The cubic root of 2118347804 is about 1284.2978503387.

The spelling of 2118347804 in words is "two billion, one hundred eighteen million, three hundred forty-seven thousand, eight hundred four".