2109564118 has 8 divisors (see below), whose sum is σ = 3178286712. Its totient is φ = 1050135216.

The previous prime is 2109564113. The next prime is 2109564137. The reversal of 2109564118 is 8114659012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109564113) 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, 2322855 + ... + 2323762.

It is an arithmetic number, because the mean of its divisors is an integer number (397285839).

Almost surely, 2^2109564118 is an apocalyptic number.

2109564118 is a deficient number, since it is larger than the sum of its proper divisors (1068722594).

2109564118 is a wasteful number, since it uses less digits than its factorization.

2109564118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4646846.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 2109564118 is about 45929.9914870447. The cubic root of 2109564118 is about 1282.5202862377.

The spelling of 2109564118 in words is "two billion, one hundred nine million, five hundred sixty-four thousand, one hundred eighteen".