2118099379 has 4 divisors (see below), whose sum is σ = 2310653880. Its totient is φ = 1925544880.

The previous prime is 2118099359. The next prime is 2118099383. The reversal of 2118099379 is 9739908112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2118099379 - 2¹⁵ = 2118066611 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2118099359) 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, 96277234 + ... + 96277255.

It is an arithmetic number, because the mean of its divisors is an integer number (577663470).

Almost surely, 2^2118099379 is an apocalyptic number.

2118099379 is a deficient number, since it is larger than the sum of its proper divisors (192554501).

2118099379 is a wasteful number, since it uses less digits than its factorization.

2118099379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192554500.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 2118099379 is about 46022.8136797393. The cubic root of 2118099379 is about 1284.2476438892.

The spelling of 2118099379 in words is "two billion, one hundred eighteen million, ninety-nine thousand, three hundred seventy-nine".