109869874362218 has 32 divisors (see below), whose sum is σ = 167710250267280. Its totient is φ = 53974901882880.

The previous prime is 109869874362197. The next prime is 109869874362271. The reversal of 109869874362218 is 812263478968901.

It can be written as a sum of positive squares in 8 ways, for example, as 8500880803129 + 101368993559089 = 2915627^2 + 10068217^2 .

It is a Smith number, since the sum of its digits (74) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28450796 + ... + 32080952.

Almost surely, 2^{109869874362218} is an apocalyptic number.

109869874362218 is a deficient number, since it is larger than the sum of its proper divisors (57840375905062).

109869874362218 is a wasteful number, since it uses less digits than its factorization.

109869874362218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631322.

The product of its (nonzero) digits is 501645312, while the sum is 74.

The spelling of 109869874362218 in words is "one hundred nine trillion, eight hundred sixty-nine billion, eight hundred seventy-four million, three hundred sixty-two thousand, two hundred eighteen".